It is official now: Grimlands the mix of Shooter and MMORPG with an open, post-apocalyptic world will also be available for Linux and Mac OS X!
After receiving so many questions and encouragement about bringing Grimlands to Linux and Mac OS X, we finally caved in. We are going to port Grimlands to both platforms!
It is something we have been planning for a long time, even started prototyping a few things here and there, but haven't fully committed to it before. Now we made the decision to launch Grimlands not only for Windows XP/Vista/7/8, but also Mac OS X and Linux. No matter which operating system you are using, everyone will be able to play on the same servers together.
Link: http://www.kickstarter.com/projects/121549233/grimlands-a-post-apocalyptic-rpg-shooter-mmo/posts
Direct Link
unless it gets exposure somewhere that brings a lot people in
I also started a thread about it on the Steam Linux forums.