We've mentioned the astonishingly ambitious sci-fi combat and building game StarForge before, but now it requires a special nod, because the team behind it are trying to raise some money. Based on the extraordinary range of things they've already achieved - take a look at the video below for an illustration of that - I would say these are gents who deserve an even break. Any development team that tries to sell its crowd-sourcing efforts with a video of a multi-blade chainsaw fight on a spacecraft floating above a planet, ending with one of the characters plunging into the clouds below, gets my vote. You can even register on their site to download a WIP alpha build of the game, and see how they are getting on.
In the meantime, watch.