Multiplayer .io
Dome Defense.ioTeam up to guard the hydro dome from waves of bugs and raiders.
Play now
Beta
Core Hold.io
Four pilots, one reactor, fifteen waves. Build turrets, fight the swarm, hold the core.
- Co-op tower defense
- About 10 minutes
- Live multiplayer
- No sign-in
About the game
Co-op tower defense meets twin-stick action: 4 players build turrets and fight 15 waves to protect the core. Free in your browser, with no sign-in. Bots keep every room lively.
How to play
- Move: WASD or the left stick; aim and fire: mouse or the right stick
- Between waves: build turrets and walls with scrap (B / tap the grid)
- Level up: pick 1 of 3 upgrades
- Survive 15 waves to win
Screenshots



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