As a side note, it's sad hearing about Canonical talking about desktop.org standards, and also them pushing open cloud standards with OpenStack, yet distro-agnostic Linux software package installation standards are still non-existent. They talk about encouraging healthy ecosystems, well the Linux software ecosystem would be a billion times healthier if anyone could install any software they wanted to from a good intelligent packaging standard.
What in the hell is Oil Rush going to use for it's release for Linux anyway? Some lame proprietary installer no doubt, which may or may not put a shortcut for both running the game as well as removing it into the Gnome menu. How 1995 is that?