LRUD is a 3D puzzle game where players must collect all the red boxes in each stage to solve the puzzles. The core mechanic of the game is rotating the map to find new perspectives, allowing you to avoid obstacles or discover paths. Use the Shift key and arrow keys together to rotate the map, and use the arrow keys to move the character to solve the puzzles.

Each stage gradually becomes more difficult, and you will need to change perspectives using the mouse to find the solution. Collecting all the red boxes will allow you to progress to the next stage, and as the stages become more complex, new strategic approaches will be required.