
ENG title : Strange Prison and Lustful Underground Labyrinth ~Nana's Naughty Prison Break~
JP title : おかしな刑務所と淫欲の地下迷宮 ~隙だらけな七奈のエッチなプリズンブレイク~
Language: Japanese
Developer: Fujiyama Soft
Scheduled Release: Late Aug. 2025
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Description :
Nana, a girl who was imprisoned for a crime she did not commit, must navigate the dimly lit prison and vast underground area by the light of a flashlight in an attempt to escape.
There are rumors that the prison is inhabited not only by guards and prisoners, but also by other supernatural creatures...
Sometimes you'll need to hide from enemies, and other times you'll need to make full use of jumping and attacking actions to escape from your pursuers.
If you investigate suspicious places, such as toilets or holes in the wall that could provide a shortcut, you'll find all sorts of traps.
You can switch to play as the protagonist or as her brother who comes to visit her at the prison!
Work together as brother and sister from inside and outside the prison to try to escape.
Whether you're playing as the brother or the sister, if you get captured by the enemy, you'll suffer a terrible fate!
The underground area is a Metroidvania-style map.
In the underground area, characters appear smaller than in the prison area, and there's more action.
However, during H-scenes in the underground area, the screen zooms in on the characters, allowing you to enjoy the pixel H-animation more clearly.
A vast map with great freedom of exploration
Strengthen your weapons early to defeat strong enemies...
Strengthen your jumping power to overcome walls that you couldn't get over before...
Take detours to find hidden rooms and treasure...
Freely explore the vast map.
The ending will branch out depending on the player's choices.
Will you be able to escape from this strange prison safely...
Or will you encounter a completely unexpected ending...!?
*For those who aren't good at games, there is a flashback mode available, and a rescue mechanism after failing a certain number of times in difficult areas.
It would be a great pleasure for us as developers if you could play through the game aiming for the true ending.
We are planning a discount sale for several days after the release date,
so we would appreciate it if you would add this page to your favorites
to receive notifications when sales begin.
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Sample pictures :






Cheers