It's a space adventure game borrowing from Roguelikes and the *lancer genre. It's not a new galaxy EVERY time you play, but there are several different "world packs" that have already been released, and the dev has the ability to create more with little difficulty.
It's also not a MMORPG -- you don't interact with or PK other players, but their actions in the galaxy affect what you see and can do. A four-hour trial and low price make it a great bargain on top of the replayability.
All in all, interesting stuff with a friendly developer who loves having you send him log files for finding and fixing bugs. I am not said developer, just said sender of log files.

Jake