Adult PC Game: Futa Prision - v1.2.9D by Ninja Head Archive

Futa Prison: Tells the story of Sato, an ordinary young university student.
One day, while he was about to play video games, he notices a magical portal in his room.
Out of curiosity, he enters and is transported to a world ruled by futanaris.
Unfortunately for him, the portal was summoned by a thief who escaped from some guards. He used the portal to summon anyone and blame them. Our protagonist is taken to prison for a crime he did not commit.
Sato finds himself trapped in an unusual prison, where the guards are women who are over 2.5 meters tall and armed with large red sticks between their legs.
Now, Sato must embark on a desperate quest to discover how to escape this unique prison where men are treated like sex toys.
---------
As he progresses in his adventure, he will unravel the strange history of this world and discover why it is dominated by futas.​

Futa Prision - v1.2.9D by Ninja Head Gameplay Preview