Take a look at the newly launched Kickstarter for Big Robot Games' Sir, You Are Being Hunted. Perhaps you've heard of this one? The open-world survival/stealth FPS drops players into a procedurally generated rendering of the British countryside where roaming steampunk robots shoot any humans that they see.
The Kickstarter funding goal is set at £40,000, a number which seems very achievable given that, with 26 days remaining in the funding period, the amount pledged is already at £32,239 at the time of this writing. Much of the work on Sir has already been done; Big Robot is turning to Kickstarter to ensure that the final product is fully polished.