Posted November 18, 2013

Judge interest. Nobody wants to spend time and money on a game nobody wants.
Feedback. You get a lot of people to talk about your game, provide feedback to your design, and later test it.
More than you bargained for. If Brian Fargo spent $900k creating Wasteland 2, it wouldn't be anywhere near the game it would be at $3m. Kickstarter can mean a better game than you were planning.
There are more reasons, but basically Kickstarter is the logical place to go if you have a project. It's a lot more logical to try it than not try it.