Gamers play as a member of the Night Watch, an order set to "protect the case of Light" against the rival Day Watch. Both groups can enter the Dusk, an alternate realm full of magic. By entering the Dusk, players' magical abilities will be greatly enhanced, but the plane will also deplete their energies.

Characters can specialize in three classes. The shape-shifters can alter their forms into those of animals that rely on physical might. Enchanters have the ability to turn normal items into magical items. Mages harness the power of magic and can cast mighty spells.