It's a project I've been working for a while (there's been long pauses). It is a 2 dimensional top-down (woooah) space RPG, akin to my Space RPG mod, basically a blend of Freelancer, the X series, Evochron Mercenary, Tachyon: The Fringe et al.
At the moment it's strictly multiplayer, but I'm not excluding the possibility of having a singleplayer mode and syncing the local account with the remote ones.
The game is also [going to be] extremely moddable - all items (commodities, equipment), ships etc. are configurable. It also supports server side and client side scripting as of recently.
It's not nearly done, but I'm working on it. More detailed rundowns of updates to the game will be posted on my blog, so check on it from time to time.
Since the game is at such an early stage I'm gladly accepting suggestions and I will try to implement the good ones to the best of my ability. I'm also open to feedback and criticism, but bear in mind the fact that Cosmic Frontiers is in early stages of development.
(Exploding heads are hopefully going to be a thing, DC)