From the Linux download page on Wildfire's website

Install from Wildfire's PPA:

Or open the Terminal and type

sudo add-apt-repository ppa:wfg/0ad
sudo apt-get update
sudo apt-get install 0ad

(If you get errors about unmet dependencies, check that you have the Universe repository enabled in /etc/apt/sources.list.)

Run the game from the command-line as


or from the application menu item "Games" / "0 A.D."

Unstable version: You can try a more up-to-date but less-well-tested version from Wildfire's development snapshot PPA, which should be updated each week. Follow the instructions above but use the ppa:wfg/ repository name.