M.A.S.S. Builder
-30%
$24.99$17.49
Volatile day Frequent rank swings
169 ranks dropped today
+373 ranks fastest jump today
6 hours of climb streak today
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.
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Release Date
Sep 14, 2025
Metrics
85%(4,097 reviews)
20currently playing
Developer Details
Developer
Vermillion DigitalPublisher
Sekai Project