Boltwork
Lift the screws, drop the plates, take the machine apart. 120 solvable boards.
Boltwork is a calm screw puzzle. Plates sit stacked on a steel pegboard, each one held down by screws. Tap a screw to lift it, then tap a free hole, or drag it straight there. When nothing is left holding a plate, it falls away. The catch is that a screw with another plate lying on it cannot be lifted, and if you run out of free holes with plates still on the board, you are stuck. So you plan the order before you move. There are 120 levels, from two plates up to fourteen, every one checked solvable, plus a new board each day. Clear a board in the fewest moves for stars. Glass plates show the screws hidden underneath, and coins from every level buy wood, candy and glass plates and brass, black, copper and gold screw heads. Plays offline, no account needed. Free with ads between levels, never during play. No purchases.