Jack-o-nine-tails is free 2D adult hentai parody game set in fantasy world. It is similar in style to Slave Maker, but much darker as the player can actually kill any slave in several ways. The player is a slave maker. He buys female slaves, trains them for various jobs (as a cook, a maid, a secretary, a gladiatrix etc.), develops their sexual skills and can sell them to customers.
The game is divided into a number of days. Slave Maker and slaves are getting tired and must rest. The player has many options to punish (bondage, public shaming, scolding, beating, torture etc.) and reward (moral encouragement, buying various stuff, erotic rewards, free time in nice places and dates) slaves. Both the slaver and the slaves have a certain mood and maintaining a good mood is important for development.
The game contains a story mode and a sandbox mode.