Master the rules of color as you merge, slide, and strategize your way through each puzzle.

Build, test, and share your own challenges with the in-game level editor.

Challenge your logic in this casual, minimalist puzzle game. Slide and merge colored blocks using the additive color system — combine red with blue to create magenta, green with blue for cyan, and red with green for yellow. Clear clusters of connected colors, but think strategically: merging the wrong way might leave you stuck.

Solve increasingly complex puzzles filled with special blocks:

• Prisms to convert white blocks into essential red, green and blue blocks

• Duplicators to copy blocks

• Gates that restrict movement

• Void holes that delete blocks

• and more...

Your goal? Fill all outputs with required blocks and clear connected blocks to conquer each level.