Project Subtrahend
Project Subtrahend is a choose-your-own-adventure visual novel, where you have the chance to get to know the stories, lore, and personalities of nine unique characters. Choices matter in this game, and it's up to you who lives or dies as you explore what it means to be human.
Last Updated: 10/18/2025
| Steam Price | $3.99 |
| Release Date | 12/1/2023 |
| Developer | LilyDynamite |
| Publisher | LilyDynamite |
| Steam App Id | 2629200 |
Project Subtrahend
Project Subtrahend is a choose-your-own-adventure visual novel, where you have the chance to get to know the stories, lore, and personalities of nine unique characters. Choices matter in this game, and it's up to you who lives or dies as you explore what it means to be human.
Last Updated: 10/18/2025
- Windows
- Mac
- Linux
About Project Subtrahend
Project Subtrahend is a Casual, and Indie game developed by LilyDynamite. On 12/1/2023, it was released on the Steam Store by LilyDynamite.
It can be played and ran on Windows, Mac, and Linux systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
According to Steam’s category system, Project Subtrahend supports the following features:
- Steam Achievements
- Single-player
- Family Sharing
From the Steam community, Project Subtrahend has been tagged with the following user tags:
- Philosophical
- Lore-Rich
- Dark
- Multiple Endings
- Story Rich
- Political
- Visual Novel
- LGBTQ+
- Choices Matter
- Comedy
- Conversation
- Choose Your Own Adventure
- Indie
- Casual
- Singleplayer
- Female Protagonist
- 2D
- Emotional
Media & Sceenshots
Watch the featured video for Project Subtrahend and see the latest screenshots from the Steam Store.
Related Packages
Project Subtrahend is referenced by 1 package in the Steam Store. A package (or sub) is simply an item that can be purchased on Steam.
| Name | Price | Actions |
|---|---|---|
| Project Subtrahend | $3.39 | View |
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Features & Categories
Frequently Asked Questions
Soures & References
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Project Subtrahend data has been sourced from:
- Valve Corporation. (2025, October 18). Project Subtrahend on Steam. Steam Store.
- Valve Corporation. (2025, October 18). Project Subtrahend. Steam Community Hub.
- LilyDynamite. (2023, November 1). Project Subtrahend. Project Subtrahend.