Adult PC Game: Despair Labyrinth: Ransom of Elynsor v0.09 by Takimaru Archive

The premise is that a kingdom has had its princess ***napped by a prominent guild of bandits known for their involvement in the sex trade. With her life, among other things, at stake, the crown puts up a 100 million gold reward to the first adventurer who successfully brings her back safely.
This game has multiple characters (with the potential for more), and you basically start off able to select a female adventurer of several choices, each with their own ambitions and desires. Your quest is to fight your way through the Despair Labyrinth and find the Princess, and then bring her out safely. Basically, it's Game Over Rape with a lot of forced sex and eventual bondage, group, etc. I'm still actually working on the story, so what you see here is ... more or less thrown together for the purpose of testing an H-game.​

Despair Labyrinth: Ransom of Elynsor v0.09 by Takimaru Gameplay Preview