Tetrachroma

Tetrachroma adds color-matching rules to block-stacking action. Pieces contain two or more colors, and to clear a line, every block in it must match. You change block colors by placing a piece next to a line, using a mechanic inspired by Reversi, and can plan moves to clear 15 or more lines with a single piece.

Stacking mechanics

The game includes wall kicks, lock delay, spins, perfect clears and combos. Speed settings range from Peaceful and Easy through Normal, Hard, Master and Death.

Game modes

Five or more gameplay modes are available in 400-line marathon and 100-line versions. The modes include:

• Standard: balanced for general play.
• Console: uses classic retro console stacking mechanics.
• Big: uses double-sized blocks for an extra challenge.
• Cell: uses a square board and a modified set of pieces.

Puzzles and customization

Tetrachroma has 40 hand-designed puzzles. You can unlock more than 10 block styles and 20 color palettes by clearing modes.