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M.A.S.S. Builder cover art

M.A.S.S. Builder

Commander, customize and build your Mechanical Assault Skeleton Suit (M.A.S.S.) and lead the fight against an alien invasion bent on exterminating the human race. The fate of humanity is in your hands.

Steam SteamDB
Game Stats
Release Sep 14, 2025
Price $24.99
Reviews 85% (4,108)
Avg CCU 11
Copies Sold 123,240
Revenue Est. $1.9M
Identity
Genres
Action Indie RPG Strategy
Developers
Vermillion Digital
Publishers
Sekai Project
Media
Classification
Tags
Action Action RPG Anime Beat 'em up Character Customization Combat Futuristic Gun Customization Hack and Slash Indie Mechs Multiplayer Post-apocalyptic RPG Robots Sci-fi Shooter Singleplayer Third Person Third-Person Shooter
Categories
Co-op Family Sharing Full controller support Multi-player Online Co-op Single-player Steam Cloud
Languages
English Japanese Simplified Chinese Thai Traditional Chinese
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