1/3
2 Years of Service
- Allow others to update?
- yes
- Developer Name
- UMAI NEKO
- Developer Links
- Version
- v0.25
- Latest Update
- Apr 3, 2026
- Release Date
- Feb 6, 2025
- Language
- English
- OS
- Windows

Overview:
Due to the Libido Reduction Virus, humanity faced a serious population decline.
The government began developing a vaccine for libido reduction, targeting criminals. However, during clinical trials, a side effect was discovered where if the subject did not continuously release their excessive sexual urges, their DNA would break down, causing severe physical deformations. Despite the failed clinical trials, experiments continued on the test subjects, but one day, the lab was destroyed by an unidentified terrorist group, allowing the imprisoned test subjects to escape.
Yuri Hanasaki looks around in response to the people's screams. Mutant creatures were attacking civilians.
Remembering her father’s teachings to help the weak, she runs out to intervene...
2d game, female protagonist, big ass, big tits, vaginal sex, anal sex, oral sex, multiple penetration, groping, teasing, rape, japanese game, side-scroller, monster, combat
Extract and run
2026 April
Stage 06
Demo
Initial Release
Stage 06
- Added HCG illustration animation of mutation experiment X1.
- Game optimization『Fighting Girl Yuri』 is scheduled to be released on June 1st.
We are currently working on the final code, bug fixes, and balance adjustments.
In addition, a test version is scheduled to be released in May, along with the release of the official name of 『 Goblin Cave (tentative)』. - Fixed an issue where viewers would return to the first screen after viewing in gallery mode.
- Some code has been improved and optimized to work on lower spec PCs.
Demo
Initial Release
♥Game Functions (Keyboard)♥
♥Game Functions (Xbox Controller)♥
- Use the arrow keys to move
- Z key: Attack
- X key: Skill attack
- C key: Dash move
- Spacebar: Special skill attack
- Number 1: Use HP recovery potion
- Number 2: Use MP recovery potion
- P key: Pause
- S key: Status window
♥Game Functions (Xbox Controller)♥
- A button: Attack
- B button: Skill attack
- X button: Dash move
- Y button: Special skill attack
- LT button: Pause
- RT button: Status window
- LB button: Use HP recovery potion
- RB button: Use MP recovery potion
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