StarCraft

Frost Giant Studios have launched a Kickstarter for their upcoming RTS.

Even though it is fully funded for release and would have launched regardless of the campaign's success (it already shattered the target), they have decided to launch a Kickstarter anyway both to offer a way to purchase a digital collector's edition and to allow people to financially contribute for the opportunity to beta test.

From the page:

Why Kickstarter?

Stormgate is fully funded to release. This Kickstarter is in part a response to fan requests for a way to purchase a physical Collector's Edition of Stormgate. We think we've put together a truly special collectible for our most dedicated supporters, but producing the Stormgate Collector's Edition will require a commitment from our players to cover our manufacturing costs. We have also received countless requests for beta access. Scaling online multiplayer testing for a massive audience can get very expensive--beyond what we can support without additional funding. This campaign will allow us to welcome many more players to playtest Stormgate as a reward for directly supporting the studio.