1/3
8 Months of Service
- Allow others to update?
- yes
- Developer Name
- yoshii tech
- Developer Links
- Version
- v1.5
- Latest Update
- Apr 28, 2026
- Release Date
- Jan 25, 2026
- Language
- English (AI MTL)
- OS
- Windows

Overview:
Built around the legendary treasure known as the ”Red Secret Stone” as its core,
this dungeon exists within a separate dimension.
Its name is… the Ero Ero Dungeon.
Adventurers who dare challenge it in hopes of stealing the treasure are ensnared by its many lewd erotic traps...
There, they are tormented with overwhelming pleasure until their magical power is drained away, then used as “mana batteries,” making it an extremely dangerous place.
You play as the knight Sherika, who has been dispatched from the Eastern Kingdom to eliminate this threat,
and has been entrusted with conquering the dungeon
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Extract and run
This latest entry in the Ero Ero Dungeon series is a simple and casual erotic RPG that focuses primarily on the dungeon’s trap elements!
The battle system in this game is a “Directional Key Battle” system, playable using only the arrow keys!
Match the vector power and press the correct direction keys to defeat monsters!
It gives you the feel of fighting in a quick and easy way.
If you take too many attacks from monsters, an animated full sex scene will begin, and you will be unable to proceed until you are finished inside...
And if you collapse there from exhaustion, even more obscene acts await...
Harder Erotic Traps Assault the Female Knight!
The Ero Ero Dungeon features more than just scenes where monsters overwhelm their defeated prey in group encounters.
There are also many humiliating and unavoidable climax-inducing traps that target the female knight, such as:
Futanari and Breast Expansion Variants Return This Time Too...
A long-running tradition of the Ero Ero Dungeon series!
Most scenes include alternate versions featuring futanari and breast expansion content.
Choose breast expansion, futanari, or both—whichever you prefer—and make your way through the dungeon.
Base CG Count: Approximately 36 Images
Additional CG scenes are planned for future updates.
The battle system in this game is a “Directional Key Battle” system, playable using only the arrow keys!
Match the vector power and press the correct direction keys to defeat monsters!
It gives you the feel of fighting in a quick and easy way.
If you take too many attacks from monsters, an animated full sex scene will begin, and you will be unable to proceed until you are finished inside...
And if you collapse there from exhaustion, even more obscene acts await...
Harder Erotic Traps Assault the Female Knight!
The Ero Ero Dungeon features more than just scenes where monsters overwhelm their defeated prey in group encounters.
There are also many humiliating and unavoidable climax-inducing traps that target the female knight, such as:
- Futanari-themed traps where keyholes must be opened using futanari anatomy
- Electrified maze traps that must be cleared in order to proceed
- Aphrodisiac pools where, unless you advance within the time limit, the breasts swell larger and larger until movement becomes impossible
Futanari and Breast Expansion Variants Return This Time Too...
A long-running tradition of the Ero Ero Dungeon series!
Most scenes include alternate versions featuring futanari and breast expansion content.
Choose breast expansion, futanari, or both—whichever you prefer—and make your way through the dungeon.
Base CG Count: Approximately 36 Images
Additional CG scenes are planned for future updates.






