CrestFlow

Structure Lab is a compact spatial puzzle for quick, focused sessions.

Place a rotating set of block shapes onto a 5x5 board. Each round gives you a limited number of moves, and every placement must fit without overlapping existing blocks.

When you are ready, resolve the board to check whether the structure is stable. A structure is stable only when every placed block remains connected through supported contact to the bottom of the board.

The game keeps track of your score, stage progress, best results, and recent completed runs on the device. You can restart a session at any time, rotate pieces before placing them, and clear stored history from the app.

Structure Lab is designed for offline play with a clean interface and fast feedback. It is built for short puzzle sessions that reward careful spatial planning and steady progress.