0 A.D. is an open-source, 3D real time strategy game with an ancient warfare theme, developed by Wildfire Games, and using the Pyrogenesis engine.
0 A.D. started originally as a mod concept for Age of Empires II, but in 2009 Wildfire Games licensed the code under the GPL and announced it will be open-source, available for Linux, Windows and Mac OS X.
The game is currently under heavy development, and the latest alpha was released on October 19 2010 (Alpha 2 'Bellerophon') and it currently includes the following features:
- 3D graphics using OpenGL
- 1 civilisation units & buildings
- fog of war
- group movement and basic unit formations
- population limits
- repair command
- unit following camera mod
- building rotation keys
Considering it's still in alpha, the game doesn't have yet an AI opponent, however multiplayer works (the in-game manual explains how to play over Internet). Regarding single-player, you can still try the game to see the current features and adjust to the gameplay.
The developers didn't fix a date for the final release, but the final game is expected in 2011 or 2012.
Installation in Ubuntu 10.10 Maverick Meerkat
To try it in Ubuntu, use the 0 A.D. PPA:
sudo add-apt-repository ppa:wfg/0ad
sudo apt-get update
sudo apt-get install 0ad
Run the game by typing 0ad in a terminal or press Alt+F2 and type 0ad in the run box that appears.