Savage: The Battle for Newerth, a real-time strategy shooter from S2 Games, has been liberated for both Windows and GNU/Linux. While S2 Games provides Windows installation instructions on the S2 Games Download page, you can find the GNU/Linux installation file links and instructions in this post at the Evolved Clan Community forums.
S2 Games actively supported GNU/Linux with Savage and has announced GNU/Linux support for the sequel, Savage 2: A Tortured Soul. Savage 2 is scheduled to launch during Fall 2006 and is currently available for pre-order for $29.99.
Download and installation instructions: [ Savage: The Battle for Newerth ]