Valve co-founder Gabe Newell is probably sitting in a room right now looking over the various Linux titles available on Steam and, in his best Mr. Burns voice, saying "Excellent" with his fingers clasped together. With the introduction of Counter Strike: Condition Zero (CS:CZ) to Valve's Linux catalog, the number of Linux games available on Steam now sits at exactly 80 titles, Valve announced in a blog post.
A Steam for Linux client went gold three weeks ago and is now available for free from the Ubuntu Software Center. Valve says it intends to make more titles available to Linux users in the coming weeks or months, though the company didn't mention any specific games. CS:CZ is the fifth Valve title to be released for Linux.
Newell's interest in Linux stems in part from the walled garden approach he fears Microsoft will ultimately take with Windows 8. Even if those fears prove unfounded, early indications suggest there's growing interest in gaming on Linux. The latest Steam Hardware Survey revealed that Linux usage on Steam more than doubled in February to 2.02 percent, up from 0.8 percent in January.