Nine rows of tiles, climbed from the ground up. Each row hides a trap (two on Expert) among its tiles. Tap a tile on the lit row: a rung takes you up a row and raises the multiplier, a fracture ends the round and the bet is lost. Cash out whenever you like to take your bet times the multiplier beside the row you reached.

Easy has four tiles to a row, Medium three, Hard two, and Expert three with two traps. The harder it is, the faster the multiplier climbs, and every cash-out point returns the same 97% on average, however high you stop. In Auto, pick your path on the board, one tile per row from the bottom, as high as you like: every round climbs it and cashes out at its top, the gold line.

Each row's traps are drawn from your own provably fair seed pair when you reach that row, never changed afterwards. When the round ends, the rest of the tower is shown too. After the round, or with New seeds, check every row on the Provably fair page. A round left open is cashed out after ten minutes (a tile is picked for you if you hadn't picked any).