TETR.IO is a free-to-win modern yet familiar online stacker. Play multiplayer games against friends and foes all over the world, or claim a spot on the leaderboards - the stacker future is yours!
✓ CO-OP DATA HUMAN-VERIFIED · CROSSPLAY CONFIDENCE: N/A · VERIFIED Jul 18, 2026 ·
SOURCECo-op details
Save behaviour
Individual account rank, records and cosmetics; room state is session-based.
Session length
Match/set 5–20 min.
Matchmaking type
Public Quick Play/ranked matchmaking and private custom rooms on central servers.
Crossplay matrix
// no verified cross-platform pairs for this game yet
