Beyond Divinity Windows game

As a servant of a paladin you hate and hunt necromancers. During the battle with one particularly vile necromancer, the necromancer summons Samuel, a demon who drags you into another universe and soul-forge to a Death Knight. Your fate is to spend the rest of eternity bonded to this creature of evil, unless you can undo this curse. You and your unlikely companion embark on a great adventure to unlock the secret of riftrunning... your only answer to this life of darkness!