Cycle of Corruption [v1.0.0] [Kredyn]

April 28, 2026F95

Welcome to the age of hysteria, where a confused doctor finds himself in the confines of an asylum riddled with monsters of an unknown world.
As you navigate through the abandoned and filthy rooms of the institute to unravel the asylum’s tragic secrets, piecing together fragmented memories and disturbing documents, the succubi lurk in the shadows, testing your willpower and sanity. Resist their temptations to uncover the mysteries surrounding the institute – and yourself…
…or succumb to the darkness within.

Thread Updated: 2026-04-28

Release Date: 2026-04-28

Developer: Kredyn Patreon – X (Twitter) – Discord – Itch.io – Steam

Censored: No

Version: 1.0.0 DLsite

OS: Windows, Android, Mac, Linux

Language: English, Russian, French, Spanish

Other Games:

Genre:

2dcg, 2d game, male protagonist, monster girl, vaginal sex, oral sex, big ass, big tits, fantasy, adventure, creampie, female domination, animated,

Installation:

1. Extract and run.

Changelog:

v1.0.0

N/A

v0.8.0

– Finished the dragon twins arc (if you have been holding off, now is a good time to check back)! Now only the finale is left. This update is very lore-heavy!

– Added a new area, the cathedral!

– Added a new scene with Neelie!

– Added a new bad end scene and a new CG!

– Added a new scene with the catgirl!

– We commissioned 4 original soundtracks for this update, including a theme for Neelie and Eileen.

– Smart toys with Linear Accuators should now work! With that, every toy that Buttplug.io supports should work.

– Added voice acting for Tabitha.

– Added voice acting for Iris.

– Added Korean localization until the contents of version 0.7.0 (AI GPT translation)!

– Added Japanese localization until the contents of version 0.7.0!

– Updated Chinese (AI), Spanish, Russian, and French localization until the contents of version 0.7.0!

– Updated some earlier animations to be of better quality. (Rose BJ, Cowgirl, Anne Cowgirl)

– Fixed a bug where the fishing minigame didn’t work with the mouse.

– Fixed a bug where you could get stuck if you died inside the shed.

– Fixed a bug where you could get stuck after losing Anne’s boss battle and going back to it, getting blocked by the imp.

v0.7.0
See More

– Added 20 new maps to the garden to explore!

– Added a new girl (Alraune) that you can meet in the maze parts of the garden! She has 2 animations.

– Added a new scene for Neelie.

– Alice’s handjob scene is now implemented!

– Added proper absorb animations to the endless scenes.

– Added Chinese simplified localization until the contents of version 0.6.0 (AI GPT translation)!

– Updated Spanish, Russian, and French localization until the contents of version 0.6.0!

– You can now switch back from survival difficulty to casual mid-game, but not the other way around.

– At the fishing minigame, the catch button now disappears as soon as the catch window expires.

– Added a smoothing following effect to the camera.

– Fixed some animations being blurry and not pixel-perfect.

– Boulders now only make a sound if they are moving.

– Imp boss room 1 now properly moves your character when discovered.

– Changed the candle part of the clock puzzle in the very beginning.

– The chemical puzzle was improved to accept the correct recipe in any order, and now only one solution is kept after each try.

– Hopefully fixed a bug that made husks spawn in wrong locations.

v0.6.0
See More

– Started working on a new area, the gardens! It currently includes 16 new maps to explore!

– New main girl(s) has been added to the gardens area! Currently having one new cowgirl scene.

– A new patrol enemy has also been added to the gardens. She has a tongue blowjob scene and a reverse mating press one!

– Due to popular demand, endless scenes are back! Patrol enemies now won’t stop after the MC cums one… They will continue. Forever! Or until you press the confirm button 🙂

– With endless scenes implemented, each patrol enemy got new scripts as well.

– Started implementing difficulty selection. There is now a casual and survival difficulty, casual being the difficulty that the game had so far. Survival makes enemies more deadly, makes save point heals only be usable once per save point makes some parts harder and less forgiving and makes loot more scarce. Basically choose this if you want more of a survival horror experience.

– Updated Spanish, Russian, French localization until the contents of version 0.5.0!

– Added voice acting for Hazel.

– Updated lighting system. It should be more optimized now and the game should run better than before!

– When dying, now you leave a husk behind on the map.

– You can now press SHIFT to bring up the message backlog.

– Save points now restores Guardian Pendant and built up pleasure even if you don’t save (on casual mode). It’s enough to just interact with them.

– Added particle effects here and there.

– Changed sound effect when enemy detects the player.

– Celestial Tears now cost 15 coins in the vending machine.

– Fixed Anne Imp threesome scene not triggering sex toys properly.

– Fixed a bug that made the pipe and phone puzzle lag.

v0.5.0
See More

– Imp’s area is now completely done! You can explore her newest games and challenges. This includes her boss room and many mini-games!

– Added a thighjob scene for the Imp.

– Added a titjob scene for the Imp.

– Added a threesome scene with the Imp and Anne.

– Added a bad end with the Imp and a CG for her!

– Added voice acting for the Lord.

– Added a new UI for the struggle minigame.

– Made Imp’s theme a little bit less loud.

– Skipping text is now possible on joystick by holding down the left trigger.

– Fixed a bug where the toggles in the options menu worked iffy if triggered by the confirm button.

v0.4.5a
See More

– Finally added oscillation support for smart toys!

– Added French localization!

– Added Russian localization!

– Added Spanish localization (only until the contents of version 0.3.0)!

– Footsteps now make different sounds on different surfaces.

– Added a fix, that helps with random freezes on some machines, fixes high CPU usage and inaccurate playtime counting on high refresh rate monitors.

v0.4.5
See More

– Even more expansion to Imp’s area! Some more lore, puzzle rooms and even a chase scene.

– Anne comes back! She has a new anal animation and 3 new scenes. Normal, a returnal one and the game’s very first bad end!

– A new patrol enemy was added. She has a licking and an amazon position animation. She also has her very own scene.

– Anne got voice acting!

– Added some random events.

– Options menu was updated with a design that is consistent with

the game’s UI.

– Flashlight and Menu buttons can now be rebound in the keyboard settings menu.

– Lots of small bug fixes.

v0.4.0

– Imp’s area was expanded. Explore the new rooms, puzzles and horrors. 🙂 – Imp got a new missionary animation and scene.

– A new patrol enemy was added. She has a rimjob and a cowgirl animation.

– Mary got a new scene. Can you find it? 🙂

– Added 4 new temptation scenes to the Imp.

– Imp got voice acting!

– Rose got voice acting!

– Mary got voice acting!

– Added xray window options to penetration animations!

– Localization support is now added to the game! If you wish to help us translate

the game into other languages, please contact me. 🙂

– Added a new charm system! They provide passive buffs when equipped at a save point.

– Extended Rose’s and Mary’s patrol scripts.

– Texts can now be skipped by pressing the “CTRL” key.

– Improved arrow animations when caught by an enemy. -Improved fading in animations at the start of the scene. Lots of small bug fixes.

v0.3.0

– Imp area first part is now completed! She will relentlessly keep tempting you!

– Added Anne BJ scene when caught by her in her fight.

– Added Imp wall handjob scene.

– Added a new scene with the Imp when temptation is at max.

– The game now supports smart sex toys! Read more about it on my Patreon!

– You can now find coins and spend them at vending machines for items.

– Changed Rose cowgirl animation a little bit.

– TV effect can now be turned off from the options menu.

– Lots of small bugfixes.

v0.2.0

– Added a new patrol enemy into the new area. She has 2 animations (titjob and amazon position)

– Added a new scene for the Imp if you go back to her after losing once.

– Added a new scene for Rose if you go back to her after meeting Anne. (You have to be corrupted at least a little bit to see)

– Finished Anne’s are of the game. You will be able to have a boss fight with her.

– Added the last few rooms of the area and puzzles.

– The official Android build is now available (still could have bugs, and performance issues!)

– Added bust to Alice.

– Reworked the first puzzle.

– Added a hint as to what to do when you get trapped by Anne in the teleporter room.

-Made enemies, shake their hips faster in patrol scenes.

v0.1.1

– Added a new character (Anne) plus her patrol scene.

– Added rock-paper-scissors lose scene with Imp.

– Added new puzzles, rooms, random events and story content, altogether about 30 mins of gameplay time.

– Added title screen music.

– Added Stamina indicator.

– In-game menu now shows corruption level, pleasure level and guardian pendant state.

– Increased save slots to 30.

– Save slots now show file number.

– Added a random event that happens in West Hallway.

– Changed room display name’s position and size.

– Changed paper charm sacrifice animation when using one to evade the corruption.

– Enemy succubus now shouldn’t spawn while interacting with objects.

– Fixed X not closing the menu.

– Fixed MC’s sprite.

v0.1.0a

Initial Release

Developer Notes:

3001175 1696351450317 | Free Adult Games

The day has come! We’re announcing our new game, titled Cycle of Corruption, which is the official prequel to Drain Mansion. So, what can you expect?

– Even more horror elements, and a more impactful, eerie atmosphere

– Heavier focus on the story

– Lots of fun puzzles to solve

– New gameplay with plenty of diverse mechanics (just a hint: your deaths will be pretty meaningful!)

– The return of some of your favorite Drain Mansion ladies

– … and much more!

Please note that the game is currently in the very early stages of development, so a lot can change throughout the journey. But I hope that I’ve piqued your interest and you will follow me on this adventure in the same awesomely supportive way as with Drain Mansion!

In this game, I’ll be trying to make higher-resolution animations. You can see an example here:

Yes, the first returning character that we introduce from Drain Mansion will be the succubus lord. You can also see her animated bust here.

This time I also have a helping hand with the game and I won’t be working on the project completely alone!

I’m excited to see what you guys think so far, please do share your thoughts with me! The game is still very early in development and I don’t yet know when I will be able to submit something playable. I’ll be sure to keep you guys updated ^^.

Fan Signs: