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.
About
Inspired by the trolley problem, this thought-provoking choose-your-own-adventure visual novel gives YOU control over who lives and dies. You have the chance to get to know the stories, pasts, and personalities of nine unique characters after you've all been invited to help with an innocent social experiment. Explore the deep interpersonal relationships between them, learn about the politics of their world, and explore what it means to be human.
Don't get too attached... when things start going awry, you choose how to escape and who makes it out alive!
With a lore-filled world, tons of choices, entertaining gameplay, secret endings, rewards for achievements, bonus scenes, and an hour of playtime in each route, you won’t be getting bored anytime soon as you discover everything Project Subtrahend has to offer!
make Impactful Choices
When the time comes, you choose how to escape and who survives, but it won't be easy.Befriend (or be-enemy) nine vastly different characters. [\h2]
Get to know their diverse life experiences, perspectives, and relationships.
learn About Sicknessism
A new religion has emerged in New Evenfall; you have the chance to learn about it, and maybe even join in ;)earn Extra Content
Unlock achievements to fill out each character’s scrapbook and unlock bonus post-game scenes with each character!Videos
Screenshots
Achievements
Let River die.
Let Angel die.
Let Dane die.
Let Amelia die.
Let Peter die.
Let Valorie die.
Let Mareeya die.
Let Ivy die.
System requirements
Minimum Requires a 64-bit processor and operating system OS *: Windows 7 Processor: 1GHz Memory: 512 MB RAM Graphics: OpenGL 2, OpenGL ES 2, WebGL, or DirectX 9 Storage: 200 MB available space Recommended Requires a 64-bit processor and operating system
Minimum OS: 10.10 Processor: Apple M2 or Intel Core Memory: 512 MB RAM Graphics: DirectX or OpenGL compatible card Storage: 400 MB available space Additional Notes: May work on Apple M1, unable to test.
Minimum OS: Ubuntu / SteamOS Processor: 1 GHz Memory: 512 MB RAM Storage: 500 MB available space