Otherworld is an economic strategy, similar to the Slave Maker, Sim Brothel and Whore Master. At first, the player chooses his story, the assistant and the purpose of life (a condition defines victory). Then you need to buy slaves at an auction to develop the desired characteristics and prodavt them at a profit. In the game there are shops that sell various items to help players in training. Also in the game there are quests, for which the player can get the money, items and even unique slaves.