M.A.S.S. Builder
M.A.S.S. Builder is an Action RPG with players piloting a M.A.S.S. (Mechanical Assault Skeleton Suit) as a commander of a private military company, setting out to help combat the threat of Quarks. You will…
M.A.S.S. Builder is an indie developed by Vermillion Digital, released 14 September 2025 on PC (Microsoft Windows).
What M.A.S.S. Builder is
M.A.S.S. Builder is an indie game developed by Vermillion Digital and released in 2025. It was published by Sekai Project. It is available on PC (Microsoft Windows) only. It runs on Unreal Engine 4.
The premise, in the publisher's words
“A future in where humans lived a prosperous century and technology advancing beyond space and time,” that was what humanity should have been if not for the sudden appearance of unknown beasts of the void. A large portion of humanity were gone in the moment. War for the survival of humanity broke off all over the world, changing landscapes and settlements into warzones. Humanity were forced to relocate into shelters and reinvent their technologies into weapons of war, the M.A.S.S. technology.
How it plays
It is played from a third person perspective. Its themes are action and science fiction. It is a single-player game with no multiplayer component. Available modes: Co-operative, Multiplayer and Single player.
What you need to run it
The minimum specification calls for Intel Core i5 or better / AMD Phenom II X3 or better, 8 GB RAM and NVIDIA GeForce GTX 1050 or better / AMD Radeon RX 560 or better. An 8GB memory requirement is modest by current standards; most machines sold in the last five years clear it. Install size is roughly 3GB.
What it launched against
M.A.S.S. Builder launched on 14 September 2025, within three weeks of Ghost of Yotei, Hollow Knight: Silksong, Metal Gear Solid Delta: Snake Eater and Silent Hill f.
Released around the same time: Ghost of Yotei, Hollow Knight: Silksong, Metal Gear Solid Delta: Snake Eater, Silent Hill f.
Cheats and codes
We have not confirmed any working cheat codes for M.A.S.S. Builder yet. Rather than reprint a list we have not tested, this section stays empty until one is verified.
Official trailer
Sourced from the publisher’s YouTube channel. See all 3 videos →
Screenshots
All media
Quick answers
M.A.S.S. Builder — frequently asked questions
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