This game is really amazing, I played it back in '08, then in Japanese. Just recently 100-percented the first half, when the game was included in an Indie Royale.
Now that Rockin' Android are releasing it in English, it's the best time so far to buy it!
The Greenlight page has links to playable demos for PC and Linux but in case you don't see it
Windows: http://www.indiedb.com/games/project-fury/downloads/development-build1
Linux: http://www.indiedb.com/games/project-fury/downloads/linux-development-build
I'm the Creative Director on this indie game, I'd be happy to answer any questions you might have about our game project. We are currently running a Kickstarter campaign, so if you like what you see be sure to check that out too!
You can try the newly released procedural planet demo at: http://gamejolt.com/games/strategy-sim/godspace-galactic-2/20011/
And to get a better idea of actual gameplay, check out the previous game at: http://gamejolt.com/games/strategy-sim/godspace-galactic-beta/11361/