The Sum
Original title: The Sum - September 30, 2017


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Story
Fallout: The Sum is a total conversion mod for Fallout Tactics: Brotherhood of Steel that reimagines the post-apocalyptic genre through an anarchist, utopian lens. Set after a global meltdown triggered by the "Sum" of every major anticipated catastrophe, the game offers a uniquely positive take on survival. It is a bilingual, single-player, non-linear RPG. You are not a hero, but an ordinary person trying to survive and carve out a meaningful existence in a hostile, toxic world. The story unfolds based on your choices, and you can end the game whenever you feel your character's journey has reached a satisfying conclusion.
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Data aggregated from 3 sources: IGDB, RAWG, Steam
Last updated: 02.07.2026
Language Support
Language
AudioSubUI
English
✔✔✔
Japanese
✔✔✔
French
—✔✔
Simplified Chinese
—✔✔
Content Rating
ESRB Teen
System Requirements
Minimum
OS:Windows 10, 11
CPU:Intel Core i5-6500 and above
RAM:8 GB RAM
GPU:GeForce GTX 750 and above
DirectX:Version 11
Storage:3 GB available space
Additional Notes:Full HD 1920 x 1080 resolution monitor recommended
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Community & Media
Data aggregated from 3 sources: IGDB, RAWG, Steam
Last updated: 02.07.2026