
The free Cube Sweeper demo is live on Steam today. Cube Sweeper is Minesweeper carved into a 3D solid: you orbit the board and read the numbers around corners. The demo is a real piece of the game, not a guided tour: every board in it is generated and certified exactly like the full game's.
Below Expert, every board is certified solvable by pure logic, every mine and every hidden gem. When you lose, it is because you missed something. That is true in the demo, and it is true in the full game.
The full game launches in November 2026. Wishlist Cube Sweeper to be notified the day it releases.