In the game im looking for you play an evil being (Looks a bit like the reaper) whic was sealed but set free by some (dwarfes?) and now you collect parts of something to open a gate to destroy the world. You were able to equip your charakter and level him up by killing enemies. You were also able to replay levels. It is a siescrolling game. And you could buy equipment in a store for real money by the way.
Does anyone know which game this is and how it's name is?