X3 is the latest in a family of space sims. It boasts a very powerful graphics engine that allows fairly high poly counts, and uses shaders and DDS textures.
Here is a link to the thread for my mod...it has some in-game screen shots of the ships (I ported some ships from my X2 mods, and have not yet converted all the textures to use DDS).
X3 DDRS Mod