NECROTRIS

Tetris, except what you stack is alive.

Every 12 locks, each settled cell with exactly 1 settled neighbour spawns a copy into one empty neighbour. Clearing a line is the only thing that kills.

seed: —
score: 0
lines: 0
locks to bloom: —
spawned: 0

←→ move ↑ rotate
↓ soft drop space hard drop
R restart S new seed

Same seed, same game — every bloom included. Put ?seed=1234 in the URL to replay one.