Gachi-Natsu/ガチムチでドスケベな家庭教師のお兄さんと過ごす夏
Released Oct 2022
It was a sweltering hot day when I met him. During summer vacation, a young man who had failed his university entrance exam received a tutor to help him with his studies. He started living together with a handsome, muscular man, but! He is a cock-loving, energetic, and dirty tutor!
93% positive · 100 reviews
Done
All announced content has been released
Medium confidence
Done
All announced content has been released
Medium confidence
Where to buy
Steam $25.00
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Evaluation
Gachi-Natsu launched on October 21, 2022 and received three patches in early 2023, the last being ver1.3 on April 12, 2023. Add-ons followed: a soundtrack released on October 26, 2022, and adult ASMR audio releases on May 17, 2023, July 17, 2024, and December 10, 2024, the last of which is an alternate story. All four add-ons are now available, and no unreleased content is listed on the store. No new content for Gachi-Natsu has been released since December 10, 2024. The developer's most recent post, from December 5, 2025, announces a separate new title, Gachi-Haru, and the studio's recent releases have been new games rather than additions to this one. Content for Gachi-Natsu appears to be complete.
Evidence
Alternate-story ASMR released, the most recent content added to Gachi-Natsu in the developer's news.
All four listed add-ons, including the final ASMR audio release, are marked as released.
Content
4 of 4 released · no outstanding content
Details
Developer
Publisher
SKSK団
Achievements
—
Platform
Windows
Controller
—
Steam Deck
Playable
Players
Single-player
About this game
Introduction
It was a sweltering hot day when I met that man.Ryota Hibiki failed the university entrance exam and is trying again.
His tutor, Atsushi Kenzaki, appears before him.
Atsushi says he will live at Ryota’s house during the summer vacation and teach him how to study.
Although surprised at this sudden turn of events, living together with a good-looking, stocky guy….
Ryota is excited that there may be a little joy in his life.
But! Atsushi was a cock-loving, energetic, maximalist, and dirty tutor!
Erotic things happen all the time!
What the hell is going to happen this summer!?
Point
Charming characters by Wasp!The character design and original drawings for this work are by the talented illustrator Wasp!
The description of muscles and eroticism that even the temperature can be felt!
Please enjoy the erotic scenes that have been carefully selected.
No complicated system at all!
A branching story with many choices? A full-blown challenge? There are no such elements!
Enjoy the eroticism and story in a casual way! is the concept of this simple, one-way novel game.
Are these done yet?
Last evaluated Oct 10, 2026
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