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B-Prison Unchain needs at least DirectX 9/OpenGL 4.1 capable GPU and 4 GB RAM.
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One night in the demon world, a thief sneaks into the castle of the Demon King, seeking to steal treasure. However, the thief accidentally unleashes a legendary incubus by the name of Asmodeus. It is now Misa's duty, as the faithful soldier under Demon King Gilad's command, to protect the realm and Lord Gilad's power over the kingdom from Asmodeus's cunning schemes. Misa corners Asmodeus but Gilad stops her before she is about to obliterate him. Now Misa has to infiltrate Chastity Rock, a prison for succubi, and track down Asmodeus who uses his shape-shifting and absorption powers to stay hidden and grow stronger, feeding on other prisoners while plotting revenge. Will Misa be able infiltrate the prison and find out where Asmodeus is lurking before it's too late to stop him?
Game modes: Single player
Right now the lowest price for B-Prison Unchain we're tracking is $8.99 at Steam. We compare 1 store and prices refresh every few minutes.
The lowest price we've recorded for B-Prison Unchain is $7.19 at Steam on August 1, 2026. The current best price is about 25% above that low.
93% of 31 Steam user reviews for B-Prison Unchain are positive ("Positive").
The minimum system requirements for B-Prison Unchain are — OS: Windows® 7/8/8.1/10/11; CPU: Intel Core2 Duo or better; GPU: DirectX 9/OpenGL 4.1 capable GPU; RAM: 4 GB RAM; Storage: 2 GB available space. See the full minimum and recommended specs in the system requirements section on this page.
B-Prison Unchain released on July 24, 2026, developed by RiceReng and published by Saikey Studios.
B-Prison Unchain is available on PC (Microsoft Windows). It supports single player.
B-Prison Unchain last hit a new low of $7.19 on August 1, 2026 at Steam. Current best price is $8.99. Prices on this page refresh every few minutes, so check back around seasonal sales for new lows.
The cheapest B-Prison Unchain price right now is $8.99 at Steam.
| Store | Discount | Price | Buy link |
|---|---|---|---|
 SteamBest price | — | $8.99 | Buy B-Prison Unchain at Steam |
All-time low: $7.19 at Steam on Aug 1, 2026 — the current best price is 25% above it.
Prices in USD, refreshed every few minutes. Switch currency on this page for EUR/GBP/BRL and more.
