Achron is a game that first caught my attention on Slashdot a few months back, and is now taking preorders for $20 USD, with full access to prerelease builds and other goodies as they get finished. The developers are aiming for a 1/1/11 release.
The game is more than intriguing and I’m very likely going to get it and give it a try.
edit: Well, one day later and it seems the price is now $30 USD. I’m pretty sure it was $20 yesterday though… Looks like I won’t be getting it any time soon after all D: