Two reasons… no DRM anywhere (major plus) and… it works perfectly in Wine/Linux. I would have preferred a native Linux client, but I can live with running the game in Wine. No fiddling around to get it working either… it was install and run.
OK, there’s a third reason too… it’s shedloads of fun
Just wanted to say thanks to the game developer for making a game that’s entertaining and free of DRM silliness. People will pay for good quality games free of DRM… now if only we can convince game developers that Linux is a viable gaming platform… sigh.