Drag the slider along the tubes to solve 3D mazes in a wraparound space: when you push the slider through a wall, it returns from the opposite wall. Start with easy 2×2×2 mazes to get comfortable with the wraparound space — the “3-torus” — then work your way towards 5×5×5 mazes for the greatest challenge. If you want, you can cut holes in the walls to see repeating images of the maze, like a hall of mirrors but without reflection. Players looking for a 2D introduction to wraparound spaces may enjoy the Torus Games (for iOS and macOS) and Torus Chess (for visionOS).