Grow
Collect energy, grow your core, and become a bigger threat in the arena.
FREE MULTIPLAYER .IO ARENA
CORE.IO
CORE.IO is a fast online arena game where you grow your core, fight rivals with heat-limited energy shots, collect power-ups, and survive the leaderboard. Play instantly in the browser or use the Android app for a focused mobile experience.
Fight
Aim, fire in controlled bursts, and manage weapon heat during every duel.
Survive
Use power-ups, outplay rivals, and climb the leaderboard.