Crimson Prison

Crimson Prison Crimson Prison puts you in charge of training kidnapped girls in combat, forming close bonds, and searching for a way out of a secret underground organization.

Crimson Prison

In Crimson Prison, you step into the role of a retired prison instructor. Your job is to train kidnapped girls in a variety of combat techniques. But as your bond with one of them grows, you’ll have to both keep her safe and search for a way out of the shadowy organization holding them captive.

Recruit more girls to your side, teach them new fighting skills, and face a wide range of enemies. As the story progresses, relationships deepen—unlocking corresponding intimate animations along the way. The game is set to receive ongoing updates and optimization, including new story chapters, more “sexy girls”, intimate animations, and additional language translations.

Players have plenty to look forward to.

Story of Crimson Prison

One fateful day in a remote alley of Sumairu-Urbem, a homeless girl is abducted and thrown into an Underground Prison built for death matches—Nuevo Faredo’s Prison.

Your mission, as a retired mentor, is to train her to use her newfound energy and ensure she survives her first fight. At the same time, you must search for a way to secure her freedom.

Every year, hundreds of inmates are brought in—while hundreds more are left buried beneath the cold ground, forgotten.

Can you protect her while strengthening your party to uncover the evil that festers in the hearts of the prisoners?

Features of Crimson Prison

Mysterious and gloomy plot

The story begins the moment the main character wakes up in a cold cell, with no memory of why he was locked away. As you move through the prison, you slowly realize it isn’t an ordinary facility at all—it’s the hub for terrifying experiments and hidden conspiracies.

The narrative unfolds step by step, uncovering unsettling truths and keeping you curious about what happens next.

Adventure gameplay with puzzle-solving

Core gameplay centers on exploring locations and solving puzzles. To move forward, you’ll often need to locate keys, codes, or clues to open the next door. Some challenges demand logic and combining different items in creative ways.

The variety in puzzle design keeps you watching closely and thinking on your feet.

Survival tension and unexpected danger

Beyond puzzles, danger is always close. Enemies won’t just rush you in groups—they tend to wait in the dark. You’ll need to learn when to hide, when to run, and when to spend your limited resources to fight back.

This creates a constant, survival-horror style pressure throughout the game.

Optimized mobile interface and controls

The game is built with mobile in mind: a minimalist layout that’s still practical. Touch controls are designed to be sensitive and easy to use, allowing you to move, pick up items, and solve puzzles smoothly.

The interface stays clear and focused on atmosphere and content, without getting in your way.

Changelog

PATCH NOTES v0.1.5.6

• + 11,000 words
• + 930 CGI
• 2 main quests, each with multiple sub-quests



• New music tracks and sound effects
• New Launcher added to download the game on ANDROID!
• Spelling mistakes and potential bugs fixed
• Fully translated into Spanish
• Fixed an issue where Chisato’s CPPB sometimes wouldn’t allow purchasing an access pass
• Fixed an issue where, after buying with Merumi’s CPPB, Merumi’s animations could play incorrectly



• Fixed incorrect Casino prices shown in the Spanish translation



• Numerous bugs fixed in the Replay Gallery
• Previous events added to the Replay Gallery
• Code restructuring and rewriting to optimize for newer compiler versions
• Code and variable optimization
• Clear performance and loading-screen improvements
• Fixed Patreon Code not working (Hotfix)

HOTFIX v0.1.5.7

• Initial chance to access the lab increased from 30% to 50%
• Adjusted success rates for obtaining an approved lab pass in the “Damn These Odds” skill to match the new base lab access percentage
• Fixed an issue where Chisato’s CPPB displayed incorrect approval percentages
• Added a new cheat to master all jobs
• In-game Patreon and Subscribestar members will now be updated via a server
• Global variables updated

Player Comments on Crimson Prison

“The story is great, the characters and writing are well done, and the renders are beautiful and engaging. I’m only docking one point because of the huge amount of grinding. Everything costs so much, yet job rewards feel tiny. On top of that, raising a character’s affection can take something like 7–10 interactions per affection level (depending on XP gain).

There are also fetch quests that don’t really accomplish anything except collecting apples, waiting for them to respawn, and collecting more—without any real purpose. The training is also intense and takes a long time, and if you don’t keep up with it, it decreases. Then there are constant injuries (which raises the question: why???).

The only reason I kept playing was because I had URM installed. I used it to skip all the grind. But even after constantly finding and changing variable values…”