A list of other projects from Kickstarter with the Linux support can be found here.
This incredible wave of Linux games leads to the massive need of Linux developers. Ryan C. Gordon told about the e-mail flow to him in one of his tweets:
Cool trend: I’m getting a LOT of emails about Linux ports of games that start with “we just had a successful Kickstarter.“
Now we hope that Steam for Linux will be released very soon and will become the last piece of the puzzle for the success of Linux on the desktop.