Yes, more rtcw info :right:
id Software has released the eagerly-anticipated multiplayer Linux binaries for Return to Castle Wolfenstein, allowing server admins to set up shop for the new first-person shooter by Gray Matter and Nerve Software. This requires the retail Windows game from which you manually need to copy a number of .PK3 files.
News source: 3DGamers
Download: Linux binaries @ 3DGamers