Classic
Original rules of the base game.
Logic / 9 modes
Mazes
One entrance, one exit, and a path waiting to be found.
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One game. Several approaches.
Fog
Reveal nearby cells and retain the explored map.
Ice route
Every move slides until a wall; the exit is reachable in the stopping-state graph.
Keys and doors
Collect K1 and K2 in order. Doors D1 and D2 require their corresponding keys.
Echolocation
Three pulses reveal the map for four moves each. Otherwise only your cell and adjacent cells are visible. Pulses reduce the final score.
Linked mazes
Visit the target on each of two different maps. Change maps only at the marked entrance portal P.
Coverage
Visit every cell marked ○ before exiting. Revisiting cells is allowed.
Lantern expedition
Each step consumes one light. Batteries ⚡ replenish it once; running out of light ends the round.
Route echo
Record a short route: its echo holds a switch while you cross a door.