Menu Mods v3

We don’t host our extension on the  Chrome Web Store anymore, because they don’t support our amazing features. So for now, you will have to use the userscript for new features. Mods UserScript v3 Mods v3

Major update released!

Hi again all! Today I proudly announce the new major update, V3.0! As you may know already from the previous coming-soon article ( ), a lot of new features have been added, and we actually listened to your suggestions. Mods UserScript v3-2 Mods UserScript v3

The new features are:

    • Party mode!
    • Bigger map
    • Seeing your party members dot on the map
    • Seeing your friends dot on the map
    • Brand new UI, some improvements to the in-game UI
    • Customizable next gen extension.
    • Setting a clan logo
    • Setting a clan name
    • Setting a clan tag
    • Added popular clan tags [Hero] [SR] [Schnitzel] [Gorgrond] [pewdiepie] [skYd] [mlG] [] [OpKa] [xTRA] [SFM] [EPIC] [MG]
    • More Skins!
    • A Bot (BETA) This was going to be added, but it’s too unstable. For now, we’ve got AFK/pause mode [F key]
    • Multi language (German, Turkish, English, Spanish, Dutch, French, Polish, Russian, Brazilian Portuguese, Finnish, Hebrew and Czech for now, if you want more added, don’t hesitate to contribute and we’ll add your name to the credits list!)
    • Easier access to support and contact
  • As requested, zoom reset now also works with Period (.) for keyboards without a Tilde key

Change logs: 
– Use your mouse/keyboard to zoom in and zoom out (Zoom Hack Mod) (Zoom In/Out = Mouse Wheel Scroll) to i/o keys ( i for Zoom in / o for Zoom out )
– You know your current position.
– Track your FPS with the FPS counter
– Track the IP of your friends’ server with your current server’s IP address.
– Connect to your friends’ IP and play together.
– Owning a low-end system? No worries. The plain background makes it compatible with – any system.
– Glow also lessened to support low end systems.
– Choose your own graphic mode compatible with your system.
Play with friends (direct connect to the servers)
– Saving nick and settings.
– Selecting a Server.
– Background Changer (Upload a background, then click “Set BG” to set it.)
– Toogle Snake Skin Rotator [Start or Stop -W] New!
– Respawn [ESC]
– DIE Back to main menu [Q]
– Toggle HUD – [TAB]
– Reset Zoom – [Tilde]
– New UI
– All permission, bugs and issues fixed!
– Tracking and saving best score New! (v2.1.0)
– Unblocked skins New! (You don’t need to share social media) (v2.1.0)
– New skins ( Skins Mod) “(v2.1.0)
Black Snake Skins New! (v2.1.0)
– White Snake Skins New! (v2.1.0)
– Help text added in game for Zoom Mod & Speed (v2.1.0)
– Fixed Keep Zoom Hack (v2.1.0)
– Fixed Save Background Settings (v2.1.0)
– Leaderboard text change to “Top 10 Heroes” (v2.1.0)
– Length and Rank area changed (v2.1.0)
– *Fixed New skins ( Skins Mod) “(v2.1.1)
– Zoom in/out is faster now (v2.1.2)
– * Fixed & removed auto open (2.1.3)
– +Added zoom option to i/o keys ( i for Zoom in / o for Zoom out ) Mods UserScript v3-3

This allows for amazing cooperation, because you can team up with friends and meet them in the server because you can easily see them on the map.

Planned features are:

    • Clan Wars
    • In-game radio
    • In-game voice chat
    • Bot
    • Screenshot button
    • Key remapping
  • More settings

As always, you can contribute and ask for new features by shooting us a message. You can easily contact us using the in-game “Contact” tab, too! By the way, before you ask any questions, view the in-game “help” tab and watch the amazing video guide. This will solve most – if not all – your questions.

Make sure you disable any other extension and scripts first!

How to install user scripts? Mods User Script

How to install Mods? TUTORIAL

791 Guide and Wiki page, list of "Slither io" Unblocked "Slitherio" skins and bots Slitherio Mods. Get the best hacks today.


  1. Avatar Anonymous says:

    Can you please send reply to this message with the script cause for some reason I can’t access GitHub.

  2. Avatar doesnt work says:

    doesnt work, only extra features, no hacks in it

  3. Avatar Eshen says:

    Im done with this

  4. Avatar Britto says:

    Hey guys! Morning.

    I followed all the tips, but when I install nothing happens. I’ve already cleared my cache, removed extensions, and all the others things. does not work here 8(

  5. Avatar jackson says:

    can you make some mods for it is so fun please

  6. Avatar Zach says:

    good game!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  7. Avatar Yaboi says:

    How do I bring the mod menu up? I have tampermonkey and I enabled the mod but how do I bring it up?

  8. Avatar Tom12321 says:

    Awesome job

  9. Avatar Jhson882 says:

    i don’t know this is installer

  10. Avatar Anonymous says:

    how do you get the hack,

  11. Avatar Oscar Maspons says:

    How why are you lazy make v4.4 or update v4.4 we want it we want it lazy people do your jobs v4.4

  12. Avatar Oscar Maspons says:

    we still want the new mod v4.4 even though new .io games and slither is not as popular any more but if you releiese v4.4 mod that is why we want new mods new contont new skin its been months reliese it please respond see this comment or update it’

  13. Avatar love slither io says:

    hi i installed it on fire fox i got the mod screen menu but when i press play it does not start ….can any one help

  14. Avatar Ariela Raina says:

    How do i play it theres no app where i can play it?

  15. Avatar hi says:

    i did everything it says invalid script header!!!!!!!

  16. Avatar Oscar Maspons says:

    make v4.4 also for cpu and mobile divise

  17. Avatar Starling says:

    It was good mod, you say that you will update to v4 a couple months ago, when will it be updated ?

  18. Avatar eduardo morais says:

    eu gostei

  19. Avatar raifesehalide says:


  20. Avatar tq3t says:

    umm why can’t we just download it this is stupid man doing all kinds of stupid stuff wheres the download at shit

  21. Avatar Anonymous says:

    Hola que tal he instalado el tampermonkey y la extensión del slither pero esta cuando le doy a recargar la pagina no carga osea el mod no se activa quisiera saber por que si es algun problema del mod


  22. Avatar Someone Who Loves says:

    Is this Even safe Im really scared for my laptop to get a a Virus even if I have 14 virus, add protecter and all that stuff Im trusting this thing I guess

  23. Avatar Anonymous says:

    I cant find it = the button to install it

  24. Avatar deadpool452 says:

    They won´ let me get zoom mod

  25. Avatar angel clauding quilang says:

    this is cool and super super nice.

  26. Avatar john says:

    This is awesome

  27. Avatar Luka Gamer says: is so cool game and i like this game so

  28. Avatar YoGramma says:

    How to get in android phone????????

  29. Avatar 123456789 says:

  30. Avatar Anonymous says:

    i can´t get it ! 🙁

  31. Avatar anonima says:

    vcs poderiam traduzir para o portugues essa pag?

  32. Avatar berbin says:

    this is hard show pictures instead

  33. Avatar Anonymous says:

    this is hard show pictures instead

  34. Avatar anti anonymus says:

    putos anonymus

  35. Avatar Anonymous says:

    cant get

  36. Avatar Anonymous says:

    I’m waiting for 4 version, when will you update it ?

  37. Avatar Oscar Maspons says:

    hey anyomes im sory if i spelled your name wrong but the zoom hack mod is here but first install tampermonkey on chrome web store then install this script v2.2
    zoom in and out with mose scroll or o andi keys on keyboard

  38. Avatar frk says:

    It doesn’t work in Chrome mate. Not any more.

  39. Avatar blaaaaaaa says:

    is their away that i can download this app on a apple laptop… if their is away plz tell me

  40. Avatar Dan says:

    Como vai para se site

  41. Avatar Anonymous says:


  42. Avatar fossil says:

    it wont work

  43. Avatar Anonymous says:

    HOW DO YOU GET ZOOM!!!!!!!!!!!!!

  44. Avatar kaiky says:


  45. Avatar Anonymous says:

    not so bad

  46. Avatar Anonymous says:

    slitherio mods is about hacker.

  47. Avatar Braden says:

    i want the zoom hack or mod how do you get it?

  48. Avatar سهيلة says:

    هده افضل لعبة

  49. Avatar XXDAYOPOPXX says:


  50. Avatar Anonymous says:

    how do you download the hacks and mods for slitherio

  51. Avatar Anonymous says:

    It dont work

  52. Avatar Anonymous says:

    modu nasıl yükliycem

  53. Avatar PAC_BOSS says:

    esta re bueno 🙂

  54. Avatar lionel says:


  55. Avatar EPIC Player says:

    why will it not download the mod?!

  56. Avatar layane gamer says:

    como vais para podar o mods userscript v3

  57. Avatar Jsjsjzk says:

    Flash mod

  58. Avatar slitherio comande says:

    esta mod e bom para caramba e não da lag e zoom e tudo mais

  59. Avatar Anonymous says:

    very good!!!!!!!

  60. Avatar ТИ КРУИШ НЕЩО says:


  61. Avatar Anonymous says:

    Umm yey where is the download button

  62. Avatar rynotaur says:

    where is ur download button?

  63. Avatar Anonymous says:

    if in use it and close google and open it i need to install again

  64. Avatar Anonymous says:

    I’m waiting FOR V4 ! When will it be !?

  65. Avatar lukislol says:

    i did all you told me but then the page of slitherio mods doesn´t open i don´t know why

  66. Avatar zarapawz says:


  67. Avatar corey brandon luke jake harald david foden and katelin m says:

    this will be sick if you make it so it automaticly gets the mods on when you type in google

  68. Avatar kristian manovski says:

    лау много як мод но има лакове в хаковете

  69. Avatar kristian manovski says:

    lol yes mod yes

  70. Avatar Jon Wrighton says:

    my name is jon i will like this because it has no lag on it

  71. Avatar Anonymous says:


  72. Avatar Johncena says:

    hi i’m Johncena dandandandan

  73. Avatar Anonymous says:

    never get to top ten 🙁

  74. Avatar Anonymous says:

    this is not working

  75. Avatar Galaxy says:

    t to be invisible

  76. Avatar Anonymous says:

    i cant
    put one

  77. Avatar Anonymous says:

    how do you dwnload this

  78. Avatar jaqueline de oliveira ferreira says:


  79. Avatar Anonymous says:

    ik kan geen slitherio mods spelen

  80. Avatar joe says:

    yes more mods plz

  81. Avatar Anonymous says:

    how do you eve download this?!?

  82. Avatar selim kose says:

    çok güzel super

  83. Avatar patrick says:

    hi em new

  84. Avatar patrick says:

    more more !!!!

  85. Avatar patrick says:

    super cool en handig

  86. Avatar Anonymous says:

    hi im new!

  87. Avatar Anthony Sutton says:

    I’m during to geit mods

  88. Avatar Natkagirl2 says:


  89. Avatar Charelle says:

    Does it also work for an IOS Macbook? Thank you in advance

  90. Avatar crazzykitty says:

    how do i geet teh mods!!!!!!!!!!

  91. Avatar Anonymous says:

    como se usa la script

  92. Avatar colorswitchhack says:

    i use this scipt and it’s work perfectly in my comp. Thanks so much for your share !

  93. Avatar Daniel SlitherioYt Gamer says:

    I Want the NINJA Slitherio Invisimbli skin pls!!

  94. Avatar zain ali says:

    still is not working i have done all listed steps you have shown but when i refresh it, the slitherio homepage without mods is still there dude can you please help.

  95. Avatar Broke says:

    invalid script header

  96. Avatar MOISES says:

    como descargo esto

  97. Avatar Ashley Doucette says:

    Can you add a privet sever

  98. Avatar Anonymous says:

    how do i use it

  99. Avatar HDSander says:

    Please add a Estonian language too.

  100. Avatar Anonymous says:

    does this work on kindle??????

  101. Avatar Anonymous says:


  102. Avatar Anonymous says:


  103. Avatar HapzTheBomb says:

    How to we get the bots mod?

  104. Avatar paolox says:

    how i download the mod?

  105. Avatar Anonymous says:

    How do I delete this mod?

  106. Avatar Anonymous says:

    How do I delete it?

  107. Avatar Anonymous says:


  108. Avatar sam says:

    everytime i download the hack it just says untiitled! what to i do?

  109. Avatar Renan_Extreme says:

    muito legal e essa é a extensão que tem a minhoca ninja?

  110. Avatar FLAVINHO says:


  111. Avatar Daniel Mine says:

    Whenever I Try To Download The Mod At The Top It Says “Invalid Script Header” How Do I Fix This? Someone Please Help

  112. Avatar mehdiferd says:


  113. Avatar Anonymous says:

    How do I install on chromebook v3* mod on chromebook

  114. Avatar anonymous says:

    How do I get it on chromebook?

  115. Avatar Chandler says:

    How do i delete it so i can another version??

  116. Avatar jeomar says:

    hola amigos y amigas de

  117. Avatar antoine says:


  118. Avatar Anonymous says:

    its so laggy

  119. Avatar Manuel Ferreira says:


  120. Avatar Ahmedawni says:

    how do i download it please

  121. Avatar Anonymous says:

    how do i download it

  122. Avatar Savannah Matos says:


  123. Avatar tomasmora1 says:

    como de descarga

  124. Avatar Anonymous says:

    i cant install on google chrome

  125. Avatar _i3xB l says:


  126. Avatar gosh says:

    i only want a mod/hack because i want to try it.

  127. Avatar MorganGeek says:

    Je suis francais, et je n’arrive pas a l’installer !…..

  128. Avatar keebruce says:

    It says on the vid ‘add extension’ button, but WHERE IS IT?

  129. Avatar samarion says:

    it will not let me

  130. Avatar omer says:

    how dowloand

  131. Avatar molina says:


  132. Avatar bobbby says:

    won’t let me download

  133. Avatar Don says:

    How can i know that this mod safe and not a malware?

  134. Avatar Anonymous says:

    my page just keeps loading after i installed it

  135. Avatar lefter says:

    the best game

  136. Avatar Anonymous says:

    what you

  137. Avatar Anonymous says:

    me to

  138. Avatar Anonymous says:

    I can’t install The V3 Mod !!!!

  139. Avatar Anonymous says:

    me too

  140. Avatar KO Official says:

    Hello Please Create KO clan

  141. Avatar Anonymous says:


  142. Avatar jack says:

    legal demais

  143. Avatar Anonymous says:

    😀 Black Slither!!!

  144. Avatar maicon says:


  145. Avatar dodz says:

    i have just sent the indonesian translation to [email protected]
    hope it helps and useful.

  146. Avatar Anonymous says:

    hi i dond like this

  147. Avatar bridget says:

    is this safe to install?

  148. Avatar bridget says:

    is this safe?

  149. Avatar zane says:

    i don’t know how to do this!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  150. Avatar Lily says:

    It says is no longer works for chrome

  151. Avatar Anonymous says:


  152. Avatar Th3WolF says:

    The script doesn’t work
    Stupid mod. It says Invalid script header….
    FIX IT

  153. Avatar octavio says:

    ya se me tilda

  154. Avatar Elsoor says:

    I’M SO MAD!!!!!!!! 🙁

  155. Avatar ronado says:

    snela jemej fusket

  156. Avatar Sdf says:

    Hello thank you !

  157. Avatar octavio says:

    espero que no se me tilde

  158. Avatar marcos says:

    gostei muito

  159. Avatar ElAlesiBemPEola says:

    ameoh crea mejor hack la sheni dice que va muy laj eeeee traeme un venetoh con el putito gusto de cosecha dale o te cago a tiro gil

  160. Avatar Tinie Tempoah says:

    very good, very helpful and amazing. I played with my friends all day with this much. Even though i am a millionaire and i can ask someone to hack it for me but its more fun when you hack it and accomplished it. Thank you

  161. Avatar Tinie Tempah says:

    very good, very helpful and amazing. I played with my friends all day with this much. Even though i am a millionaire and i can ask someone to hack it for me but its more fun when you hack it and accomplished it. Thank you

  162. Avatar Anonymous says:


  163. Avatar Anonymous says:

    It wont let me press play when i have it downloaded

  164. Avatar Anonymous says:

    this is not working i keep trying is not working

  165. Avatar Lakey says:

    Hey um, everything is working fine with the script and what not, but I can’t seem to change the quality of the playing from low to high, whenever I click it to go high it automatically goes back to low?? Is there a reason for this or is it just my laptop?? Thanks 🙂

  166. Avatar Anonymous says:

    wwe rocks but this game sucks

  167. Avatar Anonymous says:

    why this

  168. Avatar Jhson882 says:

    I m install

  169. Avatar MaxSlither says:

    u need to delete ur tampermonkey then install it back then install script

  170. Avatar Anonymous says:

    i don’t get it

  171. Avatar rvman13 says:

    My mod isn’t working i have uninstalled it and reinstalled. i reinstalled both Tampermonkey and the mod itself. plz help

  172. Avatar Anonymous says:

    How do I install for chrome? And why when I try to install it says invalid script header?

  173. Avatar Idiot says:

    I’ve downloaded the script with greasemonkey… how do i open the game so that i can literally play it?

  174. Avatar Jackie says:

    I hope that I have it

  175. Avatar camilla says:

    oi eu quero
    uma skin nova

  176. Avatar Caydude says:

    tampermonkey install fine, then click install mods and it goes to a blank page but does not give me the install button the second time and even though it says reinstall nothing happens, i have cleared cache, no other extensions, no nothing, was working and now doesn’t can’t fix, please help!!!

  177. Avatar Anonymous says:


    • Avatar Burak says:

      right click on tamper monkey icon on your browser -> settings -> installed userscripts then you can remove from list

  178. Avatar Anonymous says:

    Nao da pra istalar

  179. Avatar Anonymous says:

    it says invalid wtf!!

  180. Avatar Anonymous says:

    como descargar

  181. Avatar Brian says:

    how can i remove all extensions?

  182. Avatar Max says:

    I can not install the hack ;(

  183. Avatar ohhh says:

    Thanks i can finaly zoom out

  184. Avatar Anonymous says:

    how to download

  185. Avatar kaua henrique says: hack

  186. Avatar Anonymous says:

    Its fixed

  187. Avatar Anonymous says:

    Wont work as of today

  188. Avatar Oscar says:

    Is this legal? Can we play without worries?

  189. Avatar Anonymous says:

    doesnt work anymore

  190. Avatar wazzuper25 says:


  191. Avatar Jeff says:

    Hi, I would like to contribute to the language translations! Who should I contact? -Jeff

  192. Avatar jahn says:

    I love it so much.: )

  193. Avatar Andrew Marass says:

    update please!!! :\

  194. Avatar #GETREKTNOOB says:


  195. Avatar Anonymous says:

    it all dis appeared

  196. Avatar arthur2 says:

    o slitherio e loco

  197. Avatar Anonymous says:


  198. Avatar bro says:


  199. Avatar cowanboys says:

    i just love the io games like

  200. Avatar Cella says:

    Hello. All of a sudden my mods are not working. I re downloaded tampermonkey and installed this mod. It shows that its on when I click on the dashboard however when I go to the site it shows that it isn’t. I can’t seem to figure it out :/

  201. Avatar Kirill Riesinger says:

    I tried all the things you asked me to do and it still won’t let me zoom out. Give a bit more specific advice as to what I should do rather than the generic crap you give everyone else.

  202. Avatar YOMISMO says:

    v3.3 NOT WORK NOW … : (

  203. Avatar Anonymous says:

    When i go to slitherio how do i pull up the mod menu

  204. Avatar kar says:

    I get a invalid script header when I click the link

  205. Avatar nurma says: skins biar menang

  206. Avatar Kirill Riesinger says:

    The zoom mod for v3 isn’t working. Any idea on how to equip the mod?

  207. Avatar Andrew Rodriguez says:

    Can i have a skin of PieDiePie

  208. Avatar Andrew Rodriguez says:

    Cab i get mod of PieDiePie skin piz

  209. Avatar Anonymous says:

    the website says untitled

  210. Avatar Andrew Rodriguez says:


  211. Avatar Anonymous says:

    it is lagging and i can´t see anything just the map and the leaderboard

  212. Avatar Siim Kr. T. says:

    I really hope that you add Estonian language. I know that Estonia is little, but… please. 🙂

    Waiting for answer:

    Siim Kr. T.

  213. Avatar victor hogo says:

    mito boy

  214. Avatar Andrew says:

    Can you add a graph showing your score or a feature showing your time alive and longest time alive? A reply would be greatly appreciated.

    – Andrew

  215. Avatar Anonymous says:

    this doesnt work on chrome!!!!!!

  216. Avatar Anonymous23 says:

    please tell me how to uninstal it?

  217. Avatar Anonymous says:

    you copy the script and use tamper monkeys script maker to make it
    and paste it in and hit save but not on hard disk
    then to check you goto dashboard and YEA!!!!

  218. Avatar oh yeah mr krabs WHREARREAERAERRAEREAREARAe says:

    i did everything
    clear the browser cache and all that
    so yeah this doesnt need help it needs to be fixed just lettin you know
    plus dont copy and paste instructions on HOW TO DOWNLOAD
    it needs to be fixed

  219. Avatar Anonymous says:

    eu quero ter o mod

  220. Avatar cdsad says:

    quiero ese hack ahora

  221. Avatar Nick says:

    How do I download

  222. Avatar Nick says:

    THIS DOSE NOT WORK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  223. Avatar Lia says:

    the mod dose not work.

  224. Avatar Anonymous says:


  225. Avatar tomas says: je dosť dobra hra

  226. Avatar PigPrincessYT says:

    This is really good I have no problem at all apart from when i try and go on it comes up whith a black screen and 1 red dot. please help

  227. Avatar Anonymous says:

    concha de tu madre pongan nuevos skindex por que si no que acemos putos

  228. Avatar Anonymous says:

    i can’t dowlaod this m od. 🙁

  229. Avatar Anonymous says:

    haw to get zoom!!!!!.

  230. Avatar Anonymous says: Im Trying To Intsall THe Script But It Says ”Invalid Script Header” Im From Sweden So I Dont Now If IT Is That Cus Before I Haved The Mods 🙁

  231. Avatar LIVIA says:

    SOS eu não sei ler em INGLÊS SOS POVO SOS POVO!!!!!!!

  232. Avatar eduardo says:


  233. Avatar I do know Eu não sei says:

    How can i change language?

  234. Avatar Lucas Felipe Caetano Ribeiro says:

    EU quero isso

  235. Avatar Anonymous says:

    i cant get the zoom or fully customizable

  236. Avatar gamer says:

    ola como deixo ele em português ?

  237. Avatar Real TheDiamondStampyCat says:

    When I click install script it just says at the top Invalid script header :/
    help please

  238. Avatar Brayan says:

    Greetings team, each color would fulfill a function, ose red can be wide, serious length green, blue serious teeth etc etc, these supplements would be interesting: D

  239. Avatar Anonymous says:

    your mod undonloaded itself and i re downloaded it, but it doesnt work. also, i cant undownload anymore.

  240. Avatar wade says:

    says the script is invalid

  241. Avatar Anonymous says:

    You should give everyone mods when they start to play. Mostly, stop the lag.

  242. Avatar skylar says:

    Why wont it let me out it in high quality?

  243. Avatar Anonymous says:


  244. Avatar Anonymous says:

    when i got my mods i got my high score of 27,563 and i went to the mod disspered and and will it save my high score on the bottem right

  245. Avatar Chaze Smith says:

    The v3 mod is not working!!!

  246. Avatar Anonymous says:

    I cant download it

  247. Avatar Michaela says:

    I’ve done all the steps, and I still cant the mod to work. It gives me the option to create a party but I end up in a public server. Please help

  248. Avatar LEL says:


  249. Avatar riden says:

    when I try to download the temper monkey appears that do not have title and the extension not be active

  250. Avatar Alexej Tint says:

    I click “Install This Script Mods!” But it does nothing!

  251. Avatar Anonymous says:


  252. Avatar hunter says:

    does not work

  253. Avatar adude says:

    which tamper monkey do i download

  254. Avatar Anonymous says:

    I cant seem to play slither with my friends… i mean i dont know how to sign in. please reply.

  255. Avatar Anonymous says:

    que lixo nao façam nds ! e serio !

  256. Avatar Anonymous says:

    how do i download it?

  257. Avatar kuba har says:


  258. Avatar BeastSnipes says:

    It says “Invalid Script Header”, I cleared my browser cache, downloaded tampermonkey clicked the link you put in everyone else’s comments and it doesn’t work. It just says
    “Invalid Script Header” at the top of my screen.

  259. Avatar KEONTA says:


  260. Avatar Slither.IO Fan! says:

    Hi! im a big fan of but theres a problem…

    its not to do with the mods or hacks or anything cuz i dont have any but there is SO MUCH LAG! ive tried everything! I watched youtube videos on how to clear lag, ive read articles but nothing works… My computer its self is fine, i think its server lag but it seems that every single server is laggy… what do i do?!?

  261. Avatar AG says:

  262. Avatar DramaSketsBread says:

    It doesn’t work, It just shows me the Slither Background and can’t play.

  263. Avatar [NOOB] Zihlan says:

    helo but how am noob whit makings download game hack coin?????? chlas of chens is game too.

  264. Avatar [NOOB] Zihlan says:

    Helo am noob but how is donloawd game moddings?

  265. Avatar Savannah Matos says:

    How to Uninstall cause I have script mod and I move stupidly random

  266. Avatar Anonymous says:

    how do u download the mod

  267. Avatar Anonymous says:

    why cant we install here and have to go to tampermonkey ?????

  268. Avatar Anonymous says:

    love it

  269. Avatar PLS says:

    Hey. Pls can you add invites??? PLS. (TO INVITE A WORM TO YOUR CLAN)

  270. Avatar az says:

    sry but I don’t wanna delete the cache I only searched for the slither ones and deleted them and 3.3 doesn’t work, 2.0 worked fine but I deleted it for this one, plz can you give the old mod link please cuz whenever I try to get the older ones 3.3 pops up

  271. Avatar aenoss says:

    hey i like to translate the mod to lithuanian

  272. Avatar Sara says:

    I want to hack

  273. Avatar Anonymous says:

    The menu shows up, but when I press play nothing happens and I just have to play without mods. Is it an error? Please don’t tell me how to install it, I already know. If it is an error, please fix it as soon as possible.

  274. Avatar Anonymous says:

    Downloaded The Mods And They Showed Up, But When I Press Play Nothing Happens.

  275. Avatar Sandy says:

    getting error on chrome
    “Invalid script header”

  276. Avatar JEMOEDER says:


  277. Avatar Anonymous says:

    How do you download this? I tried TamperMoney and it didn’t work. I’m using chrome. Plz help!

  278. Avatar Stealtheagle says:

    I downloaded it but whenever i click play the screen turns white what should i do??

  279. Avatar Anonymous says:

    help please

  280. Avatar Ann says:

    Ok can you please fix the issue lately when you boost or zoom in/out, the game lags and freezes up, eventually just stops and I have to exit browser to start over. But then it just does the same thing again!

  281. Avatar Jonathan says:

    yo quiero jugar con hacks

  282. Avatar Anonymous says:

    it does not work when u press install words come up

  283. Avatar Angelina says:

    i did all the steps with tampermonkey but i dont understand how to start playing from there

  284. Avatar noname says:

    When I play and i boost there is very much lag.
    Why is that?

  285. Avatar Dylan says:

    I click the link, page of text comes up, wtf…

  286. Avatar 170.789.465.00 says:

    hay has any one ever gotten 8,0988 points cause i have

  287. Avatar Logan says:

    I watched the video and followed the steps but it intoned me to a page with a lot of text. I looked up videos on how to download it for mobile but had no luck. Please help me and make an easier way to download for mobile.

  288. Avatar Mergim says:

    I just do not understand i went to Tampermonkey and pressed install and it just sends me to a blank page and when i go back it keeps saying REINSTALL. Can you PLEASE tell me what I am doing wrong!

  289. Avatar Logan says:

    I watched the video and followed the steps, but it just leads me to a page with text. I looked for mobile ways to install it but it doesn’t let me. Please help I want to have this for mobile.

  290. Avatar Polar says:

    It says invalid script header please help.

  291. Avatar Anonymous says:

    Yo, the play button is glitched and does not work. And I cant get into the game

  292. Avatar Anton says:

    Hi, I want to help translate the mod into Danish. Can i get some sort of text file to translate, and then send back?
    If so you can send it to me on: [email protected]

    -Anton, Denmark

  293. Avatar Skylar says:

    For some reason when I try to make it high quality it keeps switching it back to low quality. Can someone help? Why won’t it let me play it in high quality?

  294. Avatar Rex888 says:

    no descargen mods no me ando solo se queda conectando si no se me conecta mas es una mierda el mods

  295. Avatar Anonymous says:

    comi a tua prima

  296. Avatar Chi says:

    where did the new skins go? using greaseonkey for firefox, installed and several of the new skins i had are now gone, from the rainbow with white and black stripe, to the purple and lavender striped, to purple and pinkish colour to name a few. why are they in the other but not this one? or am i doing something wrong?

  297. Avatar Stephanie says:

    The game was working fine yesterday. Today, it lags and freezes when I use boost. What’s going on? I already tried clearing my web cache and reinstalling script.

  298. Avatar Anonymous says:

    nao estou conseguindo

  299. Avatar Prodigy says:

    doesnt install at all. Firefox I get get a white page with a ton of script no way to install. ON Chrome I get a yellow bar that says invalid script header. So it seems like this is impossible to do

  300. Avatar Brianna says:

    I tried to download it and it isn’t working, a banner pops up on the top of the window and says “Invalid script header”. I am using google chrome and i followed all of the steps in the tutorial video. It still isn’t downloading.

  301. Avatar TheNeonguy1000 says:

    When i go in i click play nothing hapens

  302. Avatar melanie says:

    if you don’t host chrome web store anymore than how do you get the extension than how do you download it.

  303. Avatar Buba says:

    Esta muí chulo

  304. Avatar henry says:

    i love u slither .io ps i watched vid its not working wont installlllllllllllllllllllllllll

  305. Avatar Anonymous says:

    It dosen’t download it just comes up with a page where there is loads of code

  306. Avatar anonymous says:

    Jak to zainstalowa?

  307. Avatar Anonymous says:

    how do you get the mod?

  308. Avatar Anonymous says:

    Whats the little song at around 1:09??

  309. Avatar IM a slither oi fan says:

    how to disable my mods

  310. Avatar IM a slither oi fan says:

    Who to disable my skins mods im on desktop i dont know plz i wanna know i want this sobad

  311. Avatar Anonymous says:

    It wont let me addd extention it says “invalid script header.”

  312. Avatar Anonymous says:

    it doesint work

  313. Avatar Anonymous says:

    too much work good job nut job

  314. Avatar nicole says:

    were do i download the mod or hack were lots of snakes just come crashing into my body

  315. Avatar Anonymous says:

    4 day of deleting cookies and extensions has gotten me no were. good by

  316. Avatar Anonymous says:

    How do you get the mods for mobile android devices?

  317. Avatar Peterseller says:


  318. Avatar Colin says:

    Some links on this page still reference 3.1, which doesn’t work.

    I found your link for 3.2 in the comments and it works.

  319. Avatar Anonymous says:

    The issue people are having is that they have 3.1 installed I guess. Some links on this page still reference 3.1 , which doesn’t work(at least in chrome). I found your 3.2 version in a link from the comments, and it works.

  320. Avatar Anonymous says:

    The Userscripts don’t work

  321. Avatar [ZyGang] Ceo says:

    Okay. It was working fine a few days ago but now it doesn’t work. I read the tutorial, and watched the video. It’s still not working. Please fix

  322. Avatar Anonymous says:

    what do i do when it says invalid script header i rlly want this

  323. Avatar help meh says:

    what if it says invalid script header?

  324. Avatar S3bast1n says:

    I have everything installed and no other mods but this one and it doesnt work anymore…I tried reinstalling but no…….It worked fine 2 days ago plz help!!!!!

  325. Avatar Anonymous says:

    3.2 not working, please fix

  326. Avatar Anonymous says:

    3.2 not working.

  327. Avatar Anonymous says:

    what about the lag? coud we have ping and servers to chose the bether one?

  328. Avatar Me says:

    This is what the userscript currently is. the actuall script has been deleted and removed.

  329. Avatar ME says:

    The script is gone

    This script was deleted from Greasy Fork, and due to its negative effects, it has been automatically removed from your browser.

  330. Avatar gio says:

    it says invalid script header

  331. Avatar Anonymous says:

    I click instanll but it just disapers

  332. Avatar Anonymous says:

    It does not work for some reason I am useing chrome and tampermonkey it says due to its negitive effects from grease monkey we have removed it from tamper monkey and the script has no special things

  333. Avatar Anonymous says:

    how to get sounds

  334. Avatar Anonymous says:

    I’m curious but would it be possible to program a function to make your snake wrap in a perfect circle that goes with your length?
    The current defense/pause mode is okay but coiling into such a small dot makes it quite easy for others to wrap you up.

  335. Avatar Anonymous says:

    Please make another chrome extension.

    • says:

      We don’t host our extension on the Chrome Web Store anymore, because they don’t support our amazing features. So for now, you will have to use the userscript.

  336. Avatar Anonymous says:

    Can you please make a chrome extension again. 🙁

    • says:

      We don’t host our extension on the Chrome Web Store anymore, because they don’t support our amazing features. So for now, you will have to use the userscript.

  337. Avatar Anonymous says:


  338. Avatar Anonymous says:

    You say to reinstall with the link above. But it’s still the same link as before. Please fix the link.

  339. Avatar Evan says:

    mine keeps saying when i try to get the mods says we dont host our extension on the chorme store

  340. Avatar thomas says:

    any mods for android?

  341. Avatar Anonymous says:

    I can’t FIX the LAG

  342. Avatar p4b says:

    deleted all of my extensions and it still wont load for chrome

  343. Avatar kylie says:

    i cant find the things that are in the vid.!

  344. Avatar angel says:

    hello, the script has been removed from greasyfork 🙂

  345. Avatar Anonymous says:

    get high with me’

  346. Avatar sycofaery says:

    Went to play with it and am being told ” This script was deleted from Greasy Fork, and due to its negative effects, it has been automatically removed from your browser.”

    Is there a new script? i deleted and reinstalled from the link in the blog above.


  347. Avatar glrfarmer says:

    My slither v3 mod has quit working. Tampermonkey shows it as running, but it’s not loading. All I see is the unmodded game. The mod was working great about 45 mins ago.

  348. Avatar ramzi says:

    how do we hack

  349. Avatar Polak23p says:

    Hello. Polish language is okay, no grammar errors or something, but i would like to help ya with the polish language 🙂
    Can I do it?
    If yes, how?

  350. Avatar Anonymous says:

    Script was working great. Closed browser, then went to play 15 minutes later and script is not working. No errors reported but not doing anything. Normal (unmodified) game play and not showing modded menu at startup. Is it me or did something change?

  351. Avatar Anonymous says:


  352. Avatar Daken517 says:

    Help please, it says invalid script header. What do I do?

  353. Avatar Anonymous says:

    It keeps saying “Invalid script Header” What do I do? (Please, do not replyn with a link. It wont help) 🙁

  354. Avatar lisa Arkwright says:

    zoom wont’t stablize

  355. Avatar Damien says:

    It won’t let me get v3

  356. Avatar Anonymous says:

    It’s saying there’s an invalid script and I can’t download it

  357. Avatar Edward says:

    Hello Im Edward I Installes the New (MOD) but actually my skins are not in the game i cant chose my Skin and my skin aren sooo Not normal and the Enemys Skins ait please help me … And i want to Install the last Mod 2.0 or so but i cant i go to my Script and delete the 3.0 mod so I go to the 2.0 mod and install it …
    But it will automatically instaled the 3.0… Please Help Me ////.,…

  358. Avatar Kannon says:

    How do you uninstall this mod???? please help

  359. Avatar cory says:

    can I have slither.oi mods

  360. Avatar talaban says:

    i went on , and i dont see and menu what should i do cause i dont see where to play the game with the mods????

  361. Avatar Anonymous says:

    how download

  362. Avatar Anonymous says:

    It keeps telling me ‘Invalid script header.’ what do I do? DO NOT JUST REPLY WITH A LINK ON HOW TO DOWNLOAD IT! IT WILL NOT HELP ME IN MY SITUATION.

  363. Avatar Anonymous says:

    I can’t find the place to actually download it, also. I have no fricking clue on how to use the userscript!

  364. Avatar Jeff says:

    I cant download the mods for any help please, it keps saying to make sure that I have removed any other extensions but I have. It also says that you do not support Google Chrome anymore.

  365. Avatar Anonymous says:

    where download?

  366. Avatar Anonymous says:

    can someone tell me how to create an account ?

  367. Avatar Mod Lover says:

    Hi and thanks for this Mod…its Great

    But suddenly, i am having issue that zoom in/out with keyboard is not working in chrome in v2.1.x extension(i am on was working before)
    Then i installed v3 yesterday…same issue….zoom in/out from keyboard not working in v3 also

    Today i read your reply below to clean cache and all issue fixed …i do clean cache and installed script again(like you said all issue fixed) but same issue ….other than zoom in/out from keyboard, all other functions are working perfectly

  368. Avatar tim says:

    every time i get invalid script header when i try to install

  369. Avatar Angel Gomez says:

    it wont let me install it why!!!!!!!

  370. Avatar Jenny says:

    I have been using the slither mod for a while and I LOVE it. Now all of a sudden, it has an autozoom thing happening where it automatically, slowly zooms back in and I can’t stop it. HEEELLLPPP!!!!!!! How do I stop it from doing this??? I have already reset everything, disabled, enabled, gahhh… How do I fix this?!?! Thanks!

  371. Avatar Anonymous says:

    I dont know where to find the script, I’m using Google

  372. Avatar User says:

    Also, since the escape key respawns you, it should trigger the ‘play’ button instead of respwaning the play screen.

  373. Avatar User says:

    When you zoom out, it slowly zooms you back in.

  374. Avatar Anonymous says:

    When you zoom out now, it slowly zooms back in. You have to keep zooming back out.

  375. Avatar Wesley says:

    Zoom still going in…

  376. Avatar Anonymous says:

    I can’t download this mod because I’m using a chrome laptop, when I try to download it, it says invalid script header.

  377. Avatar INTP_98 says:


  378. Avatar Stephanie says:

    PLEASE add sound effects of some kind with next update!!!!! I LOVE THIS GAME and am absolutely addicted but something is just off….. grabbing the sparkly poops feels satisfying, but not as satisfying as it should be with sound effects. I don’t know, the game is just completely silent and with sound effects, this game will probably take up 100% of my free time.

  379. Avatar fenn says:


  380. Avatar Anonymous says:

    i cant find the downloads button

  381. Avatar Po says:

    I followed the instructions here, and everything seems to be working except zoom. I have a trackpad, so I’m using the i/o buttons to zoom in/out, but it’s not working. Suggestions?

  382. Avatar Anonymous says:

    Help!! this new version dont stay at the zoom i chose. zoom is moving in!

  383. Avatar Dean says:

    how do you stop it slowly zooming back in when you zoom out, highly annoying

  384. Avatar Anonymous says:

    thank you

  385. Avatar dedu says:

    can you download it on macbooks?

  386. Avatar Anonymous says:

    Where is the Italian Language?

  387. Avatar Sweety says:

    Oh my good ! Thank you for this extension i love iiiiiiiiiiiiiit ♥♥ Thanks 😉

  388. Avatar FIRSSTTTT says:

    I wanna havk

  389. Avatar shadow says:

    how to change my skin

  390. Avatar Anonymous says:

    Ayudenmeeee no se donde se instala ,alguien me dice donde esta?!!!

  391. Avatar Tristona says:

    I have read the tutorial, installed according to the directions, and the script still refuses to function. I have the latest version of chrome so i am not sure what is going on. I may be doing something wrong.. I go to play and the script does not show up at all.

  392. Avatar miguel says:


  393. Avatar Alana says:

    I read the tutorial and followed the instructions but when I click install on tapper monkey it brings me to an untitled page and doesn’t download, i reload the page and it says there was an issue, i removed my other mods and it still isn’t working, how can I do it?? 🙁

  394. Avatar unsatisfied person 6371 says:

    how do i use the dang userscript >:(

  395. Avatar unsatisfied customer 6384 says:

    I pressed the install button but doesn’t work

  396. Avatar Wesley Bhajan says:

    will there be an sound effect in the future?

  397. says:

    – Polish language updated, thanks to Max Keiser
    – IP selector added in connection tab (if the servers don’t show up in the dropdown menu, clear your cache and try again)

  398. Avatar Anonymous says:

    how do you get them

  399. Avatar Anonymous says:

    it only says Invalid script header i cant download it.

  400. Avatar Anonymous says:

    nao baixa

  401. Avatar Oscar Pereda says:

    The update In Safari doesn’t work! :/
    I don’t have any other scripts..

    • says:

      Pleas show us the developer console output, so we can investigate the issue. To access the developer console in Safari, use the Develop > Show Error Console menu item (Option-Cmd-C): If you don’t see the Develop menu, you’ll need to turn it on using Safari Preferences. Open Safari > Preferences, and click on the Advanced Tab.

  402. Avatar LucyS says:

    Just saying ive found a really good one on chrome web store so go get that 1 instead. It ACTUALLY works.

  403. Avatar LucyS says:

    Doesnt work its stupid i removed ALL of my extensions and it still said invalid script header
    So rather than dissing us could you maybe check it out?

  404. Avatar ilovetheunivers says:

    Benji and Benn74 its right it says invalid script heat right?

  405. Avatar Benji says:

    hey guys why does it not work

  406. Avatar Anonymous says:

    its says invalid script holder

  407. Avatar Anonymous says:

    i removed all extentions but it still doesn’t work and i read the tortorial 5 times

  408. Avatar CADENZIA says:


  409. Avatar taytay says:

    Does not work i cant hit the play button or skin button

  410. Avatar Anonymous says:

    It says “Invalid Script Header”. I’m from Argentina. I have deleted all the extensions and scripts.

  411. Avatar scott repie says:

    bezst thing ever

  412. Avatar Anonymous says:

    Did not work. I am not on a crome by the way.

  413. Avatar Anonymous says:

    it said scriped is invaled

  414. Avatar Anonymous says:

    Not working on chrome, the 2.1.4 works fine but when i remove that script and install this one, it doesn’t work :/

  415. says:

    Added 2 more clan tags

  416. Avatar Shield says:

    Every time i try to download the script it says on the top left “INVALID SCRIPT HEADER” . please someone help me

  417. Avatar Your dad says:

    i cant download this mod due to your dumbass system. i am on chrome. i clicked the Install Mod at top right. Didnt work.

  418. Avatar solal says:

    what if i use safari
    please make a video about how to install mods with safari

  419. Avatar frank says:

    how do it

  420. Avatar jh says:

    realy it is not working so guys do not try it it will be crayzy

  421. Avatar Jumbo says:

    Kinda buggy

  422. Avatar kauan says:

    irado cara

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Inside Guide and Wiki page, list of "Slither io" Unblocked "Slitherio" skins and bots Slitherio Mods. Get the best hacks today.

This contains mostly official news, by the original developers of the game! This way, you get to know the news first, and you are always up-to-date to tell your friends about the latest news! Things like new features, requests, answers to questions are always available on the news articles. If you are curious about what the devs say, check this out.

Most frequently asked questions (FAQ) will be answered here, as well as some responses to community questions. Articles from developers and other people that know a lot about the game will be listed here, so if you want to know more about the game.