Slither.io (2016)

Slither.io is a massively multiplayer browser game where players control a snake-like avatar, which consumes multicolored pellets from other players, and ones that naturally spawn on the map in the game to grow in size. The objective of the game is to grow the longest snake in the server.

RekNak on X: I will also be doing free Slither.io thumbnails for anyone who DMs me in the next week #slither #slitherio # / X

Slither.io - Wikipedia

Slither.io World Record Highest Score Challenge Multiplayer Online Game! Similar to Agar.io

slither.io (2016) - MobyGames

slither.io for Android - Download the APK from Uptodown

Slitherio on X: Welcome to Slither.io! Play online smash-hit game with your friends! / X

slither.io for Android - Download the APK from Uptodown

Slither.io' Is Hypnotically Addicting Adorable PvP Snake Action

An Aggressor's Strategy to Slither.io, by Joel Johnson