Project Subtrahend

Project Subtrahend is a choice-driven visual novel inspired by the trolley problem. You join nine characters invited to take part in an apparently innocent social experiment, get to know their stories, pasts and personalities, and make decisions about who lives and dies when events go wrong.

The characters and their world

Build friendships or rivalries with the nine characters and learn about their different life experiences, perspectives and relationships. The story explores the politics of their world and what it means to be human. In New Evenfall, you can also learn about a new religion called Sicknessism and choose whether to join it.

Choices and endings

When the experiment goes awry, you decide how to escape and who survives. The game includes secret endings, and each route offers about an hour of playtime.

Achievements and extras

Unlock achievements to fill out each character’s scrapbook and open bonus post-game scenes with each character. The game also includes rewards for achievements and additional scenes.