It's definatly thier own in house toolbox/engine. It aparently doesn't do anything close to photo real. The graphic portion is either pretty cartoon line in its rendering, or thats... works kinda ok ..it has its limitations, the cryptic art style. I really don't know which . It how ever is just as graphics card intense as any of the rest of the current pop engines . Other then the look of the art assets and a couple paculiartities of thie engine (everything is instanced..sigh!) and distance, scale, and numbers seem to be a bit more of an issue for cryptic game titles.
STO.. a game based on Startrek. Nothing to see here... Move along, move along.