Haven't heard of Two Worlds?  Wouldn't surprise me at all.  Two Worlds is an action RPG set in a medieval fantasy world, very similar to Oblivion.  The game was a 2007 360 exclusive title, and was also slated to hit the PS3 in 2008, but I believe it's still MIA.  The game was critically panned by reviewers, averaging about 50% on MetaCritic.

However, it must have been received rather well at retail, because now a sequel is due early next year.  TopWare Interactive announced a Two Worlds II earlier today, allowing players to once again run wild in the world Antaloor.  Reality Pump returns to develop the title, and will be built with an entirely new engine.

The game is due out early next year, for the PS3 and XBox 360.