Unity Sex Formula

Version: v1.9.0 Developer: MIGI STUDIO ·

Steam ·

Pixiv ·

Twitter Updated: 2026-03-28

Download

Win (Desktop)

GOFILE·

Win (VR)

MEGA·

About this game

Sex Formula is a story-driven VR porn game that follows your evolving relationship with Reika. Before she will agree to date you, you have to satisfy her sexually, no matter how far the physical relationship has already gone.

The game blends a slow romantic build with an open hub of sex scenes, character-creation features and a long list of positions and toys. Compatible with VR headsets and playable in desktop mode for those without one, Sex Formula is one of the more content-dense virtual reality porn games in the directory.

Changelog

v1.9.0

● Fixed an issue where the achievement for the memory (recollection) feature could not be unlocked. ●New animation x 10 (Kitchen DoggyStyle)

v1.8.0

[Animation] ●New animation x 6 (Kitchen OnTop) ●New main screen animation x 1 [Function] ●New facial appearances x 2

v1.7.0

●New animation x 12 (Kitchen Missionary) ●New clothing x 1

v1.6.0

●Added liquid effect display switch ●New animation x 8 (Bedroom Standing Position)

v1.5.0

●New animation x 10 (Bedroom DoggyStyle Position) ●New opening animation x 1 ●New Hairstyle x 1

v1.4

Hello everyone, Sex Formula v1.4.0 has been updated The revised contents are as follows [interface] ●Tab Key will no longer hide subtitles [Animation] ●New animation x 6 (Bedroom Ontop Position) [clothing] ●New clothing x 1 [Function] ●New Hair Material (B) ●Added color settings for hair material (B) ●When you leave the game, the current clothing settings will be recorded

Installation

1. Extract and run.

Developer Notes

*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

Controls