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Completed v2.1.0

Sex Formula

3.5

(34 votes)

Game Information

Developer

MIGI STUDIO

Version

v2.1.0

Engine

Unity

Release Date

Sep 22, 2026

Last Update

Sep 22, 2026

Censorship

Uncensored

Overview

Sex Formula is a 3D adult simulator for players who like character-focused adult content with a straightforward romantic setup. The tone stays grounded and personal rather than sprawling or plot-heavy.

Story

The player character meets Reika and wants to build a life with her. She won't agree to actually date him until he proves himself capable of satisfying her sexually first, so the relationship only moves forward once that condition is met.

Gameplay

Play centers on a custom male protagonist interacting with Reika through a series of sexual encounters rendered in 3D with an internal-view camera option. Progress depends on satisfying her in these encounters, which gradually unlocks the relationship the player is working toward. The game includes character creation tools, letting players adjust the protagonist before working through its scenes.

Features

Voiced scenes with animated 3D models for a more responsive feel
Internal-view camera angles alongside standard perspectives
Character creation options for customizing the male protagonist
Includes pregnancy as a possible outcome tied to the relationship progression

Changelog

v2.1.0

[Features]
● Added - Cloud Save
[Custom Appearance]
● Added - 1 nipple style
● Added - 1 nail style
[VR Features]
● Added - Character Movement Options
[Teleportation] - Aim the right-hand controller at the floor and move the joystick to teleport to the selected location
[Horizontal Movement] - Move the joystick on the right-hand controller to move the character (Players who are prone to 3D motion sickness should use this with caution.)
[Animations]
● Added - 12 animations (Bathroom, missionary position)

v2.0.0

[Features]
● Added - Repeat Dance Button
● Added - Automatic Hicky Display
● Added - Automatic Semen Effect Display
● Added - Automatic Cleanup After Oral Sex Settings
1. Always
2. Random
3. Never
● Added - Separate Semen Effects for Face and Mouth
(For example, semen can be inside the mouth while also visible on the face.)
● Fixed - Floating fluid appearing in front of the male protagonist's penis during story scenes
[Outfits]
● Added groin-pulled-aside variants for certain outfits
● Fixed - Glasses were not saved correctly when saving outfit presets
[VR Features]
● Fixed - Floor movement destination indicator display
[Animations]
● Added - 8 New Animations (Kitchen Standing Position)