Felt like playing something fun in a short amount of time, so I beat this game again. It starts off as a simple puzzle game, but then it starts getting more complex not only in it's puzzles, but it's environment and story. It builds on the place that is Aperture Laboratories and starts giving you clues and hints to what has been going on in this lab. It is able to tell a complex, deep, and sometimes disturbing story all through drawings on walls and through shooting portals at walls to solve test chambers. Portal is a very clever game that is always fun to go back to.