M.A.S.S. Builder
2025 · Third person
74Recommended
85Steam
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.
PlatformsPC Switch
GenreAction RPG Action RPG
CameraThird person
Art styleAnime
ModesSingle-player Online co-op
EnglishText only
Player score85% · 4 K reviews
Playing now~8 on Steam
Time to beatHowLongToBeat ↗
Release date2025
Steam price$24.99
DeveloperVermillion Digital
PublisherSekai Project
Key tagsEarly Access Mechs Action RPG Robots Gun Customization Character Customization Hack and Slash Futuristic
Major updates
M.A.S.S. Builder Original Soundtrack Now Available On Steam · May 2026All 5
System requirements
Minimum GTX 1050 · 8 GB RAM · 3 GBiSteam Deck PlayableMin & recommended
| Minimum | |
|---|---|
| OS | Windows 7, Windows 8.1, Windows 10 (64-bit versions only) |
| Processor | Intel Core i5 or better / AMD Phenom II X3 or better |
| Memory | 8 GB |
| Graphics | NVIDIA GeForce GTX 1050 or better / AMD Radeon RX 560 or better |
| Storage | 3 GB |
From the game’s Steam store page.
