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To install the Latest 0 A.D. on Ubuntu lucid to saucy, add its official ppa:
sudo add-apt-repository ppa:wfg/0ad
sudo apt-get update
sudo apt-get install 0ad
The above ppa, supports the following versions of Ubuntu: Saucy (13.10), Raring (13.04), Quantal (12.10), Precise (12.04), Lucid (10.04)...