Warzone 2100 – open source real time strategy game
Want to play something that's more challenging than the usual shoot and kill? Warzone 2100 offers you a real time strategy and tactics game designed to make you think and destroy at the same time. Warzone 2100 was published by Eidos Interactive and developed by Pumpkin Studios.
Originally, the game was released on a commercial status but by December 2004, much of the source code for the game was tagged with a GNU. Today, the title is a full open source game that you can download and enjoy right at the comfort of your own home. Take your wit and skills to help rebuild a new civilization for mankind or simply have fun blasting the enemy from beyond the gates.