Monster Girls Onsen
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Seduce sexy monster girls and run your own Japanese hot spring in this adult anime visual novel. Upgrade your onsen, unlock NSFW scenes, and explore a steamy mythological story.
Simulator
Indie
Visual Novel
Erotic
2025
15 achievements
Onsen Owner
Very common96.4%Become an Onsen Owner
Amako
Very common94.9%Meet Amako
The Story
Very common90.7%Earn Senaco's trust
Welcome to Onsen
Very common88.1%Serve 10 clients
First Profit
Very common86.1%Earn $100
My dear Kitsune
Very common84.1%Earn Hina's trust
Invaluable Support
Very common79.8%Earn Natsuki's trust
Best Broom
Very common79.6%Buy all Broom upgrades
The Keeper
Very common75.3%Earn Amako's trust
Hot and Cold
Very common70.0%Earn Yukino's trust
Expanding business
Common68.5%Buy all Onsen buildings
Home Sweet Home
Common56.7%Buy all Onsen upgrades
Absolute Trust
Common54.8%Good Ending
Good Story
Common54.7%Finish the Game
Onsen Master
Common54.6%Unlock all achievements
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