Aaron San Filippo
Why a successful indie game that can’t get on Steam isn’t a successful indie game
Race the Sun was funded on Kickstarter after the team made some bold changes to the game's design, and the game went on to be covered in a variety of outlets, it earned positive reviews, and the official web page is well-designed: Watch the video, buy the game.
This is what success stories look like, especially after the team worked so hard to both make a good game and get the word out.
The problem is that, without Steam, the sales just aren't there. PC players don't like buying things that aren't on Steam, and will often talk about waiting for the now-inevitable sales. If your game is not on Steam, you may as well be invisible to the greater community of PC gamers.
There's no easy answer here, but the game is good fun, and San Filippo shared an Oculus-ready build of the game that was amazing, and proved that third-person racing games are a good fit for virtual reality. The game's design and basic mechanics are there, and now Flippfly is focusing on getting the game on Steam. You could help by voting for the game on Greenlight.
For now read this interesting story, look at the sales numbers, and get a good look at what the reality for games that haven't found their way onto Steam.