Centrist

Centrist is a block-stacking game where you place pieces around a central piece to form perfect squares. Blocks arrive from four directions, and the game gets harder as you destroy more of them. You start with 10 health; the game ends when it reaches 0.

Place and clear blocks

You score 10 points for each block placed and 10 for each block destroyed. Completing layers awards points according to their size:

• First layer: 640 points
• Second layer: 2,560 points
• Third layer: 5,760 points
• Fourth layer: 10,240 points
• Fifth layer: 16,000 points
• Sixth layer: 23,040 points
• Seventh layer: 31,360 points
• Eighth layer: 40,960 points
• Ninth layer: 51,840 points
• Tenth layer: 64,000 points

Placing a block on the spawning line costs 5 health and clears nearby blocks. If a block falls off the board, you lose health based on how many blocks it contains; bombs always deal 5 damage.

Special blocks

Once there are at least 20 blocks on the board, every fifth block is a bomb. Bomb effects grow more powerful as the board fills. Bombs explode on collision and can also be detonated sideways. The special blocks are:

• Bomb: destroys all blocks in a 3 × 3 range.
• Big Bomb: destroys all blocks in a 5 × 5 range.
• Filler Bomb: creates blocks in a 3 × 3 range.
• Beam: destroys all blocks in a line.
• Mega Beam: destroys all blocks in three lines.
• Shockwave Bomb: forces blocks within a 5-block radius to collapse towards the center.
• Flame: destroys blocks on collision, up to a maximum of 30 blocks.
• Big Flame: destroys blocks on collision, up to a maximum of 60 blocks.

Game modes

Centrist, Classic, Bombastic and Extremist each change the available shapes, rotation rules, bomb presence or board layout:

• Centrist: includes some irregular shapes and bombs; blocks cannot be rotated.
• Classic: uses only classic block shapes, allows rotation, has no bombs and features collapsing outer layers.
• Bombastic: uses only classic block shapes, allows rotation and includes bombs.
• Extremist: uses only classic block shapes, allows rotation and includes bombs; blocks occupy the corners instead of the center.