Laboratory Mission X is an independent PC game developed and released by Acheron Design in 2004. It is a bold experiement into unconventional control-schemes and puzzle dynamics, and its combination of innovative gameplay and cutting black humour probably laid the groundwork for Valve's classic "Portal" many years later.

Complete information on Laboratory Mission X can be found on the official website, but a brief summary can be provided here. The game puts you in control of a monopolar magnetic ball, solving puzzles and squishing rats by reversing your polarity and harnessing the magnetic fields of the laboratory.

Laboratory Mission X is free to download and play, so you have no excuse not to give it a try! Grab your copy today.