M.A.S.S. Builder Player Count
Game Rating
4.1k reviews 
84.80% Highest Concurrent Players (All Time)
480
Live Player Count
Best Price
$24.99
Steam Player Count
Other Information
14 Sep 2025
Release Date M.A.S.S. Builder Description
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.
Developer: Vermillion Digital Publisher: Sekai Project Genre:
FAQ
How many people play M.A.S.S. Builder?
Monthly player data for M.A.S.S. Builder is not currently available.
How many people are playing M.A.S.S. Builder right now?
Approximately 7 users are online in M.A.S.S. Builder, indicating a smaller but steady player base.
Is M.A.S.S. Builder still popular in 2026?
There is not enough monthly player data to determine how popular M.A.S.S. Builder is in 2026.