Mechanic Preview
The map exists in the rules. Whether to print it is up to you.
You reached your destination.
A 4×4×4 cube of 64 rooms, each addressed by a 3-digit number — floor, row, column. Two identical keycards each carry four digits (two on the top edge, two on the bottom). Overlap the cards so three digits show across the top and you've named a room. Only certain digit patterns yield a valid room; that subset, plus the adjacency rules between rooms, is the map.
Rotate, flip, or swap the keycards to unlock new rooms, then click an unlocked neighbor to walk there. Reach the ★ destination to win. Or use Unlock to ask the cards to form any specific room number — the panel either orients them or tells you the room is impossible.