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.

Release

Sep 14, 2025

Player reviews

85% positive · 2,217 reviews

Platforms

Windows

Catalog information from Steam. Pricing and availability can change; confirm them on the Steam store.