Sky Stackers

Sky Stackers

Stack a crew of googly-eyed shapes on a floating island that tips under their weight. Every overhang heels the whole world over — grass, waterfall, flag and all — so the skill is keeping the centre of mass over the keel while you climb. Cross a cloud ribbon and the settled tower petrifies into the island, a new terrace is laid on top, and the spire sways as one piece. Eighty campaign levels across eight chapters, with distinct skies, island bases and chapter music, plus an endless Challenge run.

Your progress

Campaign progress, unlocked crew, coins and your best heights stay in this browser on this device. Music and sound are separate switches and are kept under their own keys, so they survive a reset. A tower in progress does not resume after a reload. Settings has a guarded RESET PROGRESS that itemises what it will erase before it does anything. Clearing site data removes progress; it does not sync between devices.

Content: Gentle cartoon physics; blocks with faces.. Browser privacy settings can affect saving.