Sex Formula
Released Sep 2024
This game narrates how the player meets Reika and begins a life together. Before satisfying Reika sexually, she will not agree to date you, even if you already have a physical relationship.
76% positive · 471 reviews
Not yet
Released, but still in active development
High confidence
Active Development
Not yet
Released, but still in active development
High confidence
Active Development
Where to buy
Steam $39.99
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Evaluation
Sex Formula launched on September 5, 2024 and has received a consistent stream of substantial updates ever since. MIGI STUDIO has now released at least ten major numbered versions (v1.3.0 through v2.0.0 visible in this scan, with earlier ones referenced), each bringing new animations, outfits, character customization options, and interface improvements. The update pattern is clear and regular: v1.3.0 in November 2024, v1.4.0 in January 2025, v1.5.0 in March 2025, v1.6.0 in June 2025, v1.7.0 in September 2025, v1.8.0 in December 2025, v1.9.0 in March 2026, and v2.0.0 on June 25, 2026. This establishes a cadence of roughly 2–4 months between major content drops. The developer explicitly stated in November 2024 (v1.3.0) that "animations and costumes will be added in the future." The most recent update was released on June 25, 2026 — less than 2 months ago as of today (August 19, 2026) — firmly within the established update window. No specific future content has been formally announced by name, but the sustained cadence and prior developer statement indicate ongoing content development.
Evidence
v2.0.0 released with 8 new kitchen animations, new outfit variants, VR fixes, and new gameplay features (dance button, automatic effects, oral sex cleanup settings)
v1.9.0 released with 10 new kitchen doggy-style animations and bug fixes
Details
Developer
Publisher
Hide Games
Achievements
25
Platform
Windows
Controller
—
Steam Deck
Unsupported
Players
Single-player
About this game
***This game has two versions: Desktop and VR. You can play it on Desktop even without a VR headset***
This game narrates how the player meets Reika and begins a life together. Before satisfying Reika sexually, she will not agree to date you, even if you already have a physical relationship.
Reika has menstrual cycles, fertile periods, and varying levels of sexual desire. If you do not take proper safety measures during her fertile period, Reika can get pregnant.
During cohabitation, the player can engage in sexual activities with Reika at three different locations, each featuring:
Foreplay: 21 positions (63 in total)
Sex: 18 positions (54 in total) including oral sex , handjob, titjob, intercourse, anal sex, and footjob
Cumming Animations: 18 positions (54 in total) including oral sex, handjob, titjob, intercourse, anal sex, and footjob
Reika’s Orgasm Animations: 4 positions (12 in total)
Reika’s Special Services: 2 positions (6 in total)
Storyline:
The storyline consists of 8 chapters, each approximately 10 minutes long. It describes how the player meets Reika and how satisfying her triggers more advanced carnal pleasures.
Dirty Talk System:
The dirty talk system in this game includes animations. There are 234 sets of dirty talk dialogues per language, varying based on the type and level of arousal.
Cross-Section View System:
The system offers two ways of presentation: the same windowed display as the previous game, or directly displayed on the character’s body.
Voice:
Supports English and Japanese voice acting, including moans, dirty talk, and all dialogues.
Subtitles:
Supports English, Japanese, Traditional Chinese, and Simplified Chinese.
**To reduce read times, it is recommended to install the game on an SSD**
This game narrates how the player meets Reika and begins a life together. Before satisfying Reika sexually, she will not agree to date you, even if you already have a physical relationship.
Reika has menstrual cycles, fertile periods, and varying levels of sexual desire. If you do not take proper safety measures during her fertile period, Reika can get pregnant.
During cohabitation, the player can engage in sexual activities with Reika at three different locations, each featuring:
Foreplay: 21 positions (63 in total)
Sex: 18 positions (54 in total) including oral sex , handjob, titjob, intercourse, anal sex, and footjob
Cumming Animations: 18 positions (54 in total) including oral sex, handjob, titjob, intercourse, anal sex, and footjob
Reika’s Orgasm Animations: 4 positions (12 in total)
Reika’s Special Services: 2 positions (6 in total)
Storyline:
The storyline consists of 8 chapters, each approximately 10 minutes long. It describes how the player meets Reika and how satisfying her triggers more advanced carnal pleasures.
Dirty Talk System:
The dirty talk system in this game includes animations. There are 234 sets of dirty talk dialogues per language, varying based on the type and level of arousal.
Cross-Section View System:
The system offers two ways of presentation: the same windowed display as the previous game, or directly displayed on the character’s body.
Voice:
Supports English and Japanese voice acting, including moans, dirty talk, and all dialogues.
Subtitles:
Supports English, Japanese, Traditional Chinese, and Simplified Chinese.
**To reduce read times, it is recommended to install the game on an SSD**
Are these done yet?
Last evaluated Aug 19, 2026
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