Best experience is on Turbowarp: https://turbowarp.org/1191204659 A (currently unfinished) platform fighter featuring characters from .IO games. Click on a character to choose it, then press start to fight! Controls: WASD - Move/Jump J & K - Attack L - Block
Changelog: v0.7 (2026-05-16) happy belated 10th birthday to diep - Slightly changed the visual effect for getting hit - Added dash (by double tapping) - Added initial momentum when running - Added a sound effect for the character selection - Jump animation for Slither slightly changed - Hitbox of Slither's forward air and jab slightly extended - Landing lag for most characters increased - DI lowered again - You can now drag the pointers to select a character, including for the opponent - Removed attack power increase from Slither's down B - Added semi-solid platforms (you can fall through them by pressing down twice) - Changed speed & friction of all characters v0.6 (2025-11-07) - DI lowered - Added Mope (VERY unfinished) - Changed Slither's neutral air - Nerfed Moomoo's specials - Slightly lowered Agar's HP - All HP is now doubled - Added ledge grabbing - Added slither.io stage - Character select menu layout changed slightly - Characters can only be knocked out of bounds from the bottom (excluding Turbowarp) - New music added: The Race to 1M v0.5 (2025-08-03) - Gave new moves to Moomoo & Diep - Some moves' damage slightly changed, Slither has less health - New thumbnail & music - Added character selection menu v0.4 (2025-07-26) - Added Moomoo.io as a character - Charged attacks are slightly faster to use v0.3 (2025-07-07) - Made art for one of the stages - Blocking lasts slightly longer New moves: Slither: Side Special Diep: Up Air + Up Special v0.2 (2025-07-04) - Added block ability + grab move for Agar v0.1 (2025-07-01) - Added Diep.io as a character v0 (2025-06-22) - First posted, some moves/animations are unfinished #games