There’s also a blog post detailing the effort to port the game to Linux:
Now after going through all this effort, you might be wondering if anyone is even going to care about a Linux build. To be honest, I have my doubts. But if other games are any indication, you can expect to gain between 5-20% sales by providing a Linux version.
How can this be given that most estimates peg Linux adoption at less than 3% of the total PC user-base? My guess is that those 3% of PC users are:
1. starving for content
2. much more likely to fit the gaming demographic
3. much more likely to want to support commercial software on Linux (Linux usesr tend to be a bit ideological)