M.A.S.S. Builder header

M.A.S.S. Builder

by Vermillion Digital

2025
87% positive
3,948
$24.99
Steam

About This Game

“A future in where humans lived a prosperous century and technology advancing beyond space and time,” that was what humanity should have been if not for the sudden appearance of unknown beasts of the void. A large portion of humanity were gone in the moment. War for the survival of humanity broke off all over the world, changing landscapes and settlements into warzones. Humanity were forced to relocate into shelters and reinvent their technologies into weapons of war, the M.A.S.S. technology.

M.A.S.S. Builder is an Action RPG with players piloting a M.A.S.S. (Mechanical Assault Skeleton Suit) as a commander of a private military company, setting out to help combat the threat of Quarks. You will build, customize, and fight to save the world, or at least, have fun creating and customizing your perfect mechanical suits.

The game features an in-depth customization system that has a clear distinction between equipment that gives status and equipment of pure aesthetics. You will be able to customize everything to suit your playstyle while looking good in this fast-paced mechanical combat.


Key Features

  • Customize your own M.A.S.S. without the worry of using cool looking armors with low stats, all parts don't have stats!
  • Fast paced movement through the battlefield with boosters for you to move around and attack through your enemies.
  • Fight against hordes of beastly aliens called Quarks, and giant ones that will aggressively hunt you down.
  • Pick how your weapon looks and shoots with hundreds of parts available to mix and match.
  • A world compelling and rich with information for you to immerse yourself in.

Get This Game

View on Steam

User Reviews

Positive3,429
Negative519
Overall87% positive

Game Details

Release Date: 9/14/2025
Developer: Vermillion Digital
Publisher: Sekai Project
Price: $24.99

Platform Support

Windows

Media

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

Similar games

Sort by:
Filter by tags:
Extremely Similar

Gearbits

by Quackpond Games

$8.49

36413

Fast-paced mecha themed third person shooter.

ActionThird-Person ShooterMechsRobotsCharacter CustomizationShooterVehicular CombatFlight+7 more
Extremely Similar

BREAK ARTS III

by MercuryStudio

$16.19

18734

With your uniquely crafted mech, dominate both the track and the battlefield. Fight your way through countless battles and aim for ever greater heights! This installment of BREAK ARTS is the ultimate Comprehensive Mech-Customizing Competitive Sport.

ActionMechsShooterRacingRobotsCraftingSci-fiFuturistic+12 more
Extremely Similar

World Of Robots

by Super Games Studio

195137

World of Robots is the tactical online shooter with simple controls

ActionMechsRobotsFree to PlayPvPAlternate HistoryShooterArena Shooter+12 more
Very Similar

Granvir

by Airborne Games

$13.49

14315

Granvir is a 3rd person action roguelite mech-builder with co-op multiplayer. Scavenge the battlefield for parts to replace and upgrade your Granvir and weaponry. PIlot your Granvir and manage your campaign between battles to find the best equipment and stay supplied while fighting a guerilla war.

MechsOnline Co-OpSingleplayerMultiplayerSimulationThird PersonMilitary3D+12 more
Very Similar

Granvir: Zero Front

by Airborne Games

11918

Granvir: Zero Front is a 3rd person action roguelite mech-builder with co-op multiplayer. Experience the prelude to Granvir as the resistance response to the Millennium Company invasion. Pilot your Granvir, manage your campaign between battles to find the best equipment, and stay in the fight.

Looter ShooterAction RoguelikeThird-Person ShooterMechsRogueliteCo-opRobotsWar+12 more
Very Similar

IRON REBELLION

by Black Beach Studio

$16.24

586103

Climb inside a colossal, crushing war machine, where every switch, lever, and round of ammunition is at your command. Physically interact with every support system and navigation stick as if you were truly in the cockpit. Customize and outfit your mech to outsmart and assert your superiority.

VRMechsActionTeam-BasedMultiplayerFPSSimulationIndie+12 more
Very Similar

Metal Bringer

by ALPHAWING Inc.

$13.99

867112

In this roguelike action-adventure, control humanoid "Labor" and giant "Arms" to uncover the mysteries of the world. Create fully-customizable robots, strengthen them, and take down hordes of enemies!

Action RoguelikeMechsHack and SlashSpectacle fighterDungeon CrawlerRogueliteCharacter CustomizationAction RPG+12 more
Very Similar

Daemon X Machina: Titanic Scion

by Marvelous Inc.

$69.99

1,063539

Feel the exhilaration of fast-paced combat in your fully customized armored suit as you freely explore a deadly and dangerous world on land or in the air. Take on titanic boss battles with alone or with up to two other friends in online co-op!

MechsSci-fiOpen WorldHack and SlashExplorationAnimeCharacter CustomizationStory Rich+12 more
Very Similar

9th Sentinel Sisters

by Live Wire

$7.99

18482

The battle of the clone girls unfolds on a post-apocalyptic Earth, devastated by the alien life form known as "Bleed." Pilot the manned weapon "Father" to eliminate enemies. Upgrade weapons, create powerful builds, and strategize to successfully clear stages.

RogueliteActionHack and SlashPost-apocalypticDarkFemale ProtagonistFuturisticChoices Matter+12 more
Similar

Mind

by WHIRLLAXY LIMITED

$17.99

283110

We fuse transforming Mecha and Roguelite gameplay elements and combine game mechanics, such as weight, armor pieces, heat, and power for you to forge a unique weapon of war to fuel your killing spree!💀💀💀

SingleplayerProcedural GenerationRPGCharacter CustomizationArtificial Intelligence2DTwin Stick ShooterHack and Slash+12 more
Similar

Brigador: Up-Armored Edition

by Stellar Jockeys

$7.49

5,194352

Pilot a mech to hunt down and destroy the oppressive government of a cyberpunk autocracy. In this fast-paced, top-down shooter, use overwhelming firepower to destroy columns of tanks and level buildings. Unlock up to 56 unique vehicles and 40 weapons.

Twin Stick ShooterActionMechsTop-Down ShooterDifficultSci-fiDestructionCyberpunk+12 more
Similar

Project Nimbus: Complete Edition

by GameCrafterTeam

$1.04

1,395236

Project Nimbus is a high speed mech action game set in a post apocalyptic world. Players control 'Battle Frames' - humanoid battle suits armed with an arsenal of weapons.

MechsActionIndieRobotsAnimeSci-fiFast-PacedSingleplayer+5 more
Similar

MechWarrior 5: Mercenaries

by Piranha Games Inc.

$11.99

11,5012,067

The year is 3015. The battlefields are dominated by war machines known as BattleMechs. Level entire cities and decimate the enemy in your BattleMech. Follow a quest for glory and revenge. Manage an expanding mercenary company. Fight alongside your friends with a four-player PvE co-op.

MechsSimulationFPSActionCo-opShooterVehicular CombatFirst-Person+12 more