If you're new to Diaspora, here's a list of games we think you might enjoy. Some are other BSG games, while others use the same engine Diaspora does.
Battlestar Galactica RelatedBattlestar Galactica Online - The Official BSG game. It's a very different type of game to Diaspora and thus definitely worth trying out. We don't consider them our competition, in fact some of our artists made ships for their game too.
Other FS2 Open Games
Freespace 1 &
Freespace 2 - Yes we know you don't need them to play Diaspora but these games are where it all started. At $5.99 each they are an absolute bargain. If you like space simulators, you owe it to yourself to check them out.
The Babylon Project - Like Diaspora, another stand-alone game based on a TV Show, in this case, Babylon 5.
Wing Commander Saga - One of the oldest projects based on this engine, WCS is the result of 10 years work, attempting to bring the Wing Commander universe up to date with modern graphics and gameplay.