Pile Up is a running and jumping game where up to four of your play as boxes. You run (slide) and jump around the level and need to jump gaps, open doors and solve puzzles to progress. You need to coordinate with each other to progress through the colourful cardboard worlds.

Players can join or leave the game at any time. The game simply scales the challenge to match the number left playing. Along with the main puzzles you can also enjoy competitive mini-games.