Linux users are hungry for commercial games
Those of us who actively promote Linux as a viable desktop alternative to Windows are often greeted with the following refrain: "Nobody will use Linux because there are no good games." The prevailing wisdom being that the abundance of high-quality, commercial video gaming is a key factor in the market-share dominance that Microsoft Windows enjoys.
And, in all reality, this is somewhat true. So, then, the obvious course of action is to convince the video game publishers and developers of the world that Linux is a viable (if, perhaps, a bit niche) market. And by "viable" I mean one thing and one thing only – "profitable." Without clear evidence (read: "case studies") of profitable game releases, Linux is not likely to see big-game publishers jump on board en masse.