Tetrads.io

Tetrads.io turns classic block-pieces into a multiplayer arena. You scoop up scattered tetrominoes to build out your character — longer configurations hit harder, stranger shapes give positional advantages. Other players do the same, and the arena becomes a collision of weaponized geometric bodies.

How to play

Collect blocks to grow. Align your body shape to attack or defend. Hitting a rival fragments part of their body — lose enough pieces and you're eliminated. Fragmented blocks become loot for the next collector.

Tips

• Start with simple shapes; complex bodies are hard to control
• Attack at edges — block corners are fragile
• Collect fragments from others' losses, not primary loot
• Mobility matters more than maximum size; don't grow past what you can steer