The hugely ambitious Star Citizen has cemented it's place as the most successful videogame crowdfunding pledge drive, wrapping up with US$6,238,563 raised from 89,668 backers.

The game's official site has temporarily been replaced with a placeholder message from Chris Roberts explaining that they'll soon be launching a walled site to continue providing development updates to backers, however, they're holding off until they can integrate those who pledged via Kickstarter.

The $6M stretch goal promised a new total of 100 star systems for the game (boasting more than Privateer), a full orchestral soundtrack for both Star Citizen, and the single-player campaign Squadron 42, and a 16-mission campaign from the single-player will now be made available for free to all backers.

Of course, this is all presuming that the game gets made, and things turn out as promised. The closing message from Roberts mentions a two year development target, putting the game's currently planned launch in the 2014 holiday season.

Finally, a new concept video shows off some early concept art of a Spaceport scene, re-created in real-time in CryEngine 3.

Very early test of moving from concept art of a spaceport to a 3D environment. Please note the fidelity of the environment and buildings is MUCH lower than what it will be in the actual game and a lot of the background city environment is missing.

Check out the video below, or click through to the HD video page.