B-Prison Unchain

B-Prison Unchain is a turn-based RPG in which you play as Misa, a soldier serving Demon King Gilad. After a thief breaks into the Demon King's castle and accidentally frees the legendary incubus Asmodeus, Gilad stops Misa from destroying him. She must infiltrate Chastity Rock, a prison for succubi, and find Asmodeus before his schemes threaten Gilad's rule over the kingdom.

Story and characters

Asmodeus uses shape-shifting and absorption powers to hide and grow stronger by feeding on other prisoners, while plotting revenge. Misa meets comrades in the prison and can rescue them from its villains so they can help her face difficult challenges. As you advance through the levels, the story unfolds and the challenges become harder.

Turn-based combat

Misa uses a range of skills and attacks, with damage proportional to her magic power level in each fight. Demons use debuffs to weaken and incapacitate her, so you must plan how to overcome each opponent and remove negative status effects before proceeding. Losing returns you to the stage progress screen, where you can retry the same level; winning advances the story and brings Misa closer to Asmodeus.

Magic power and replay

After the first encounter, you can call Warden Zaki from the Chapter map. Entering a covenant with him replenishes Misa's magic power through an exchange. Clearing the story for the first time unlocks a bonus costume for Misa to wear on the next story run.