Bless The Siege Trailer Bless The Siege Trailer Bless (Korean: 블레스) is an massively multiplayer online role-playing game developed by Neowiz Games. The game is based on the Unreal Engine 3 and is the first to utilize the engine's landscape tool, developed by Epic Games for Neowiz. Bless is set in a medieval fantasy world. The main story revolves around a decade-long war between two factions. Players can choose their character's race and class, with race determining which faction they align with.