StackO! - Unlimited Blocks

StackO! is a spare, precise isometric block stacker. A neon slab slides in from one of the two near corners — tap to drop it onto the tower. Whatever hangs over the edge is sliced off and tumbles away. So every imperfect drop leaves the next slab narrower, and a small early mistake haunts you ten blocks later. Land one dead centre and you win a little width back. Miss completely and the run is over. THREE MODES, THREE GAMES SPEED — 30 seconds. Slabs move 25% faster and the clock never stops. Pure hands. CLASSIC — stack forever. No timer, no finish line; just the tower until you miss. PRECISION — 10 blocks. Only perfect drops score, and width is never won back. Finishing all ten is the floor, not the goal. PERFECT DROPS PAY One point per block, but a perfect drop scores 1 plus the perfect streak it continues. The fifth perfect in a row pays six. A precise tower is worth far more than a careless one of the same height. GEMS AND THE SHOP Earn gems by playing — 2 per point, 3 per perfect, 50 for a new record. Spend them in the shop on colour themes. Each theme is a band of the colour wheel rather than a single colour, because the blocks ease across it as the tower climbs. No real-money purchases anywhere. RANKS Your rank comes from the sum of your three mode bests, worked out entirely on your device, so the menu always shows a next target. It is not an online leaderboard, and the game says so plainly. FULLY OFFLINE No account, no sign-in. Records, gems, themes, and settings live on your device. Play anywhere. LOOK AND SOUND A synthwave backdrop, neon slabs, and slices that spin off into the dark. Every sound effect is synthesised by the game at startup rather than played from a file — light, and matched to the look. One tap to learn. The rest is precision.