Succubus Heaven

About this game

◆ Game Overview

"Sucubus Heaven" is a roguelike 3D action game that challenges players to explore dungeons filled with miasma and curses. You lead a party of three characters, progressing through dungeon rooms one by one, managing your resources carefully to reach the deepest floor.

◆ Combat System

Players control one of three characters, each with distinct traits, engaging in real-time combat. The action system is simple, with basic "Normal Attacks," high-damage but resource-consuming "Special Attacks," and "Dodging" to evade enemy attacks.

Successfully timing a dodge results in a "Perfect Dodge" that can be followed up with a powerful "Perfect Dodge Counter".

◆ Unique Adult System

All enemies attack the heroines to sexually assault them. Physical attacks wear down their "Magic Clothes," while sexual attacks increase their arousal. When the arousal reaches its limit, it accumulates as "Corruption" on their bodies. The more "Corruption" builds up, the weaker the heroines become, eventually losing the ability to resist.

These events occur in real-time during battles, so even characters not being directly controlled are constantly at risk. Additionally, the dungeon is filled with lewd "Miasma," and the longer the battle lasts, the more the characters are affected by it. It is wise to finish fights quickly.

◆ Game Replay Benefits

Upon completing a playthrough, players receive a score based on their performance. Depending on the accumulated score, new "Loadouts" and "Boons (Blessings/Curses)" are unlocked. If the game feels too difficult, you can make it easier, or if too easy, add more challenging conditions.

The more challenging the conditions set, the easier it is to earn higher scores. Taking on difficult challenges might be the quickest route to mastering the game.

◆ Game Volume

• Over 21 types of enemies with restraining erotic attacks.
• 8 different game-over scenes.
• 2–3 hours of playtime for a single playthrough. (if you manage to reach the game's end.)

❤ Linked with Adult Toys

This work can be linked with "many app-controllable adult toys".
For details on compatible adult toys and specific linking methods, please refer to the "Adult Toy Linkage Manual" in the online manual.

◆ Frequently Asked Questions

Q. Is there a mosaic on the genitalia?
A. The genitalia are censored with a mosaic. It cannot be removed with a patch, nor will it be removed in the future.

Q. Are there any differences from other platforms?
A. Aside from Steam-exclusive features like achievements and cloud saves, there are no differences.

Q. What is the difference between the demo version and the full version?
A. The demo version has the following limitations:

• You can only progress partway through the dungeon.
• Some events do not occur.
• New Game Plus bonuses are not available.

Latest news

• Patch Notes·4 Jul 2026Official

  Bug Fixes & Minor Updates

  Bug Fixes Fixed an issue where the Spatial Reverb option would extend beyond the screen. Fixed an issue where the Escape button's sound effect and shake animation were dependent on the frame rate. Changes Added a visual effect when an item's durability is restored. Adjusted the transformation chance of Strange Black Potion. Added the Golden Well and Strange Golden Potion. Added support for devices using the new Buttplug protocol. Prevented vibration signals from stacking on connected vibration devices.
  Read full article on Community Announcements (KWT)

• Patch Notes·7 Feb 2025Official

  Bug Fixes & Minor Updates

  Bug Fixes Fixed an issue where Slug performed an attack action after climaxing during masturbation. Fixed an issue where semen attachment processing didn't work properly after changing the semen mask during an event. Fixed an issue where semen was not applied to futanari penises. Updated the mosaic to always maintain a square shape, regardless of aspect ratio. Fixed an issue where only the wooden horse trap activated, even if other traps were inactive after capturing. Changed the stamina gauge to not display when character incapacitated. Renamed the English term for critical H cut-ins to be clearer (Critical H Scene → Critical H Cut-in). Corrected an error in the English translation of the "Give Up" TIPS. Fixed audio distortion during close proximity to Divinity Reia that made the sound unpleasant. Fixed an issue where Dorothy's down animation would not loop. Fixed glitches in Dorothy's down animation. Fixed glitches in the Mosquito restrained animation while clothed. Fixed glitches in the Arachne Queen restraint animation. Adjusted Dorothy's twin tails to prevent them from rotating more than 90 degrees, as it disrupted the visual appearance. Changes Added 8 new bnefits. Modified high-platform treasure chests so Mimics will not appear. Traps now leave traces after activation. Added a maximum contamination parameter to characters (for users accessing user data).
  Read full article on Community Announcements (KWT)

• Patch Notes·18 Nov 2024Official

  Bug Fixes

  Bug Fixes Fixed an issue where the magic attack power boost effect of the Blessing "Nude" was not applied. Fixed an issue where the defense boost effect of the Blessing "Price of Enhancement" was also applied to enemies. Fixed an issue where the stamina recovery inhibition effect during combat for the Blessing "Invisible Binds" was not working. Improved the stability of penis erection control. Adjusted the delay time before stamina recovery resumes after stamina is consumed. Fixed an issue where repeatedly attacking after destroying a door would trigger Steam achievement checks each time. Fixed a bug where chests appearing in the underground cavern corridors were slightly floating. Changes Added new choices when acquiring curses from cursed chests. Made minor adjustments to the futanari sex animations with the Succubus Sisters.
  Read full article on Community Announcements (KWT)

• Patch Notes·9 Nov 2024Official

  Fixed a critical bug

  Fixed a critical bug that occurred in the previous version. Bug Fixes Fixed an issue where allies would spawn in strange positions if a room transition occurred while they were downed.
  Read full article on Community Announcements (KWT)

• Patch Notes·8 Nov 2024Official

  Bug Fixes and Specification Changes

  The following fixes and changes have been made. Bug Fixes Fixed an issue where the selection of blessings at the altar was not working correctly. Fixed a bug where allies under the "Charm" effect could be released from restraints unconditionally. Fixed an issue where allies under the "Charm" effect would attempt to evade their own attacks. Fixed a bug where using item transformation could sometimes create consumables with 0 remaining uses. Fixed an issue where returning to the title screen with F5 immediately after transitioning to the game over scene caused the sound to stop working. Fixed a bug where message skip sound would continue to play if the player transitioned to the title screen during playback. Fixed an issue where the sensitivity increase notification for the penis would appear even if "Futanari" was internally enabled but suppressed in the options. Clarified the Chinese translation for the "Treat as Naked" option. Changes Adjusted the timing for accepting dodge inputs during attack animations for playable characters. Added restraints as an accessory in the battle gallery. Added a "Camera Shake" setting to the options menu. Added a "Spatial Reverb Effect" setting to the options menu. Added a "Borderless Windowed" option to the "Screen Mode" settings. Added a "Screen Size" setting to the options menu. As a result, direct window size adjustments are no longer possible. Improved certain UI elements to prevent visual degradation at high resolutions. Changed mechanics so that excess damage dealt to enemies or objects does not reduce weapon durability. Modified destructible objects to no longer display 0 damage, except for breakable walls and doors. Brightened the post-battle arena lighting slightly. Increased the ease of semen attachment.
  Read full article on Community Announcements (KWT)