RAGEMODS
Steam game directory

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.

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M.A.S.S. Builder artwork
Release date
Sep 14, 2025
Developer
Vermillion Digital
Publisher
Sekai Project

Additional game information and artwork: IGDB

Inside the game

Media on Steam ↗
M.A.S.S. Builder Full Release Trailer preview
M.A.S.S. Builder Full Release TrailerWatch on Steam ↗

This trailer uses streaming video. Open Steam to play it.

Screenshots (22)
M.A.S.S. Builder screenshot 1M.A.S.S. Builder screenshot 2M.A.S.S. Builder screenshot 3M.A.S.S. Builder screenshot 4M.A.S.S. Builder screenshot 5M.A.S.S. Builder screenshot 6M.A.S.S. Builder screenshot 7M.A.S.S. Builder screenshot 8M.A.S.S. Builder screenshot 9M.A.S.S. Builder screenshot 10M.A.S.S. Builder screenshot 11M.A.S.S. Builder screenshot 12M.A.S.S. Builder screenshot 13M.A.S.S. Builder screenshot 14M.A.S.S. Builder screenshot 15M.A.S.S. Builder screenshot 16M.A.S.S. Builder screenshot 17M.A.S.S. Builder screenshot 18M.A.S.S. Builder screenshot 19M.A.S.S. Builder screenshot 20M.A.S.S. Builder screenshot 21M.A.S.S. Builder screenshot 22

Steam community

English reviews · All time

Very Positive

85% positive · 2,219 reviews

1,907 positive · 312 negative

Last 30 days · All languages

7 user reviews

57% positive · 7 reviews

4 positive · 3 negative

MechsAction RPGCharacter CustomizationRobotsGun CustomizationIndieHack and SlashSci-fiAnimeShooterActionSingleplayerRPGFuturisticMultiplayerThird-Person ShooterCombatThird PersonPost-apocalypticBeat 'em up

Steam listing information, media and review summaries are provided by Steam. Steam and its logo are trademarks of Valve Corporation. Updated . View the original Steam listing ↗

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