To Be SIgma
Game Information
Developer
TobeSIgmaVersion
v0.90
Engine
HTML
Release Date
Jun 3, 2026
Last Update
Jun 3, 2026
Censorship
Uncensored
Overview
To Be SIgma is a visual novel for players who want family-based harem stories with a slow corruption arc. The tone stays grounded and character-focused rather than flashy.
Story
After his stepfather's death, an ordinary young man is left as the only man in a household of two sisters and a mother. With no one else to rely on, he has to find his own footing, and that path starts leading him toward learning how to read and use the women around him to get ahead in life.
Gameplay
Play unfolds as a text-based visual novel, moving through conversations and choices that shape how each woman in the protagonist's life responds to him. Decisions build toward seduction and influence over time rather than one-off encounters, and some character paths are shaped by community voting alongside the writer's own planned routes. Outside the home, the same approach extends into business and social settings tied to the wider cast.
Features
- Large planned cast, with some character arcs decided by player voting
- Story ties household life to outside settings like business and hospitality venues
- 3DCG presentation focused on the female cast
- Incest and harem themes run through the core storyline
Installation
1. Extract and run.
Changelog
v0.90
- Kagney
- Fully reworked storyline
- 6 new scenes added
- Around 500 new media files added
- Integrated into the Studio business as both a model and partner
- New Studio partnership progression added
- New relationship level with Kagney at the end of her storyline
- Major turning point added for future conflict with higher elites
- Cafe-Bar and Studio storylines are now more deeply connected through her route
- Studio
- New Studio upgrade system added
- New Studio levels added
- Studio reputation system added
- Studio model system added
- Model profiles and model information added
- Studio website / media platform added
- Early Scouting system foundation added
- Early model market foundation added
- New Studio-related mechanics and progression added
- Breanne
- New Studio model added
- Around 1000 new media files added
- 4 scenes added
- Small storyline connected to Kagney and the Studio added
- First use of Status / SIgma Effect influence inside the Studio model system
- SIgma Corporation Foundation
- The first step toward your future empire has been added
- Studio is now positioned as one of the core future businesses of SIgma Corporation
- Early groundwork added for future business influence, contracts, scouting, and rival networks
- Future expansion will include stronger connections between Studio, Local Shop, Brothel, and other business systems
- Programming Course & Studio Website
- The programming course is now connected to the Studio system
- Website creation will become useful for the Studio
- Your Studio website will serve as a media platform for your models
- This is the first step toward making personal skills useful inside business systems
- Status & SIgma Effect
- Status is now starting to become a real influence parameter
- Status can affect decisions and opportunities in certain situations
- SIgma Effect can now be used to influence one of the Studio models
- Progressing through Francesca’s storyline can unlock SIgma Effect
- These systems will become more important in future updates
- Cafe-Bar Improvements
- Cafe-Bar location icons are no longer simple text labels
- Location icons now use images
- You can now see where Kagney is located at the moment
- This system will be expanded to other locations in the future
- Discovery Mode
- Discovery Mode now shows not only tasks, but also the required time and location
- This system is currently applied to Kagney and Breanne
- It will be expanded to more characters in future versions
- Fixes & Adjustments
- Several Studio UI elements improved
- Some character card information updated
- Small changes made to support future Studio expansion
- Various minor bugs fixed
