© 2026
Project Subtrahend is a choose-your-own-adventure visual novel, where you’ll have the chance to get to know the stories, pasts, 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.
You’ve been invited to join Project Subtrahend. What could possibly go wrong?
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!
When the time comes, you choose how to escape and who survives, but it won't be easy.
A new religion has emerged in New Evenfall; you have the chance to learn about it, and maybe even join in ;)
Unlock achievements to fill out each character’s scrapbook and unlock bonus post-game scenes with each character!
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