This is a pretty decent looking Diablo-style RPG game that adds another chapter to the game Sacred. In Underworld, you explore more areas farther north in the world of Ancaria. I found the new levels were not super great for being fun to explore, rather difficult and a little confusing, but there are interesting new quests, and the original game world is nicely expanded and can be played with 2 new characters, the Dwarf and Demoness. The original Sacred game has been known to have a lot of small bugs and glitches, which many were eliminated or minimized thanks to the Underworld epansion pack.