Edge

In Edge the player controls a cube in a geometric landscape consisting of platforms and moving shapes viewed from an isometric perspective. Throughout the world are prisms that the player has to pick up, although they are optional to finish a level. Each level is full of traps where the player can fall if he does not manage to roll his cube from a platform to another in the right time. After a level has been completed the player gets a rating based on how many times he has failed, the number of prisms he has picked up and how long it has taken.

One of the most important game elements is the ability to balance on the edges of cubes in the game world. By maintaining an equilibrium, it is possible to climb on top of platforms and hang on to moving objects to cross gaps. The balance is maintained by gently adjusting the cube's position. Advanced levels require a quick succession of different skills and abilities. Players are also able to transform the cube into a smaller version to traverse narrow passages.