Ongoing v0.2.0

The Book of Incest

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Game Information
Developer BadMustard
File Size 112.2MB
Engine Ren'Py
Release Date October 15, 2025
Last Update June 13, 2026
Censorship Uncensored

Game Overview

Short Stories That Push Boundaries

At its core, The Book of Incest is a collection of self-contained short stories, each one built around forbidden attraction and the emotional tension that comes with it. Rather than following a single continuous plotline, the experience unfolds through multiple focused narratives, giving each story room to breathe and develop its own characters and dynamics.

What to Expect From the Storytelling

Each chapter places you alongside a male protagonist navigating deeply personal relationships shaped by desire, moral conflict, and family ties. The writing leans into the complexity of these connections rather than shying away from them, making the emotional weight of each situation just as present as the explicit content itself.

Visuals and Presentation

The game uses detailed 3DCG artwork to bring its characters and scenes to life. As a kinetic novel, the focus is placed on storytelling and presentation over traditional decision-making mechanics, letting the visuals and narrative carry the experience at a steady, immersive pace.

Key Highlights

  • Multiple self-contained incest stories with distinct characters
  • Rich 3DCG visuals throughout every scene
  • Explicit content including oral, anal, vaginal, and group encounters
  • Kinetic novel format focused on narrative immersion
  • Interracial content and romantic elements woven into the storylines

Installation

Getting Started — Follow these simple steps to install and play the game on your computer.

  1. Download the game file from the download section on this page.
  2. Extract the archive using a tool like 7-Zip or WinRAR.
  3. Open the extracted folder and locate the main .exe or application file.
  4. Run the executable to start playing — no installation required.

Tip: If the game does not launch, make sure you fully extracted all files before running. Some games may require additional software like DirectX or Visual C++ Redistributable.

Changelog

### 0.2
- v0.2
- added Birthday Surprise

### 0.1
- v0.1
- Initial Release- 1 story so far- You can change font color- You can change outline color- Adjust dialogue box opacity
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