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.
What the demo holds
Unlimited Easy boards. Learn the surface before it starts folding.
Eight Intermediate and eight Professional boards, the carved tiers where numbers reach around corners. Replay each as often as you like.
The Game of the Day on all four tiers, Expert included, from a pool of seven demo days. A day is only spent when you start a board.
All three modes: Classic, Gem hunt, Expedition.
The complete Learning Journey, all 25 chapters. The tutorial, tips & tricks, and manual in one.
Everything you earn carries into the full game.
The same guarantee
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.