Spinstack

OverviewSpinstack is a single-player strategic stacking and clearing game. Pieces enter from above the board, and you rotate the concentric square base to decide which edge they fall toward. Complete a full square ring from the fourth layer outward to clear it. Floating pieces then collapse toward the center, creating opportunities for powerful chain reactions.DesignBuild outward around an indestructible core and carefully manage the growing board. Layers 0–3 form the permanent core and can never be cleared. Layer 4 and beyond can be completed and removed.The game features the standard seven tetrominoes: I, O, T, S, Z, L, and J. Choose the base direction during the decision phase, adjust the piece while it falls, and rotate the piece or base depending on the selected mode.FeaturesConcentric square board with inward-collapse physicsClear complete rings and trigger chain reactionsMulti-ring, Combo, chain, and special-effect scoringFour modes: Basic, Advanced, Fun, and ChallengeThree special blocks in Fun Mode:Blast: clears a surrounding 3×3 areaRay: clears an entire horizontal linePrism: clears all blocks of the same colorDynamic cloud background and rotating stack visualsChinese and English language supportTaglineRotate the base, stack your pieces, complete concentric rings, and chase massive chains as the board collapses inward.