The dungeon floor is a 3-D volume — one axis more than a normal top-down floor. Each panel is a flat slice of that volume passing through you: XY (collapses z), XZ (collapses y), YZ (collapses x). Moving drives the two axes of the gold panel; the third axis only changes when you switch panels and walk there.
Collect 3 gems ◆, then step on the gold exit. Sparkles ✦ mark treasure hiding one slice away. And watch for a shimmering crack: some walls are only one voxel thin — solid in one slice, a single sidestep away in another.
— press any key to descend —
All 3 gems recovered and the sealed vault breached —
that took moving through x, y
and z. A true 4D burglar.
time: 0:00
— press R to run it again —