M.A.S.S. Builder on Steam - User reviews, Price & Information
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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.
M.A.S.S. Builder is a early access, action rpg and mechs game
developed by Vermillion Digital
and published by Sekai Project.
Released on September 13th 2019 is available only on Windows
in 5 languages: English, Japanese, Simplified Chinese, Thai and Traditional Chinese.
It has received 3,856 reviews of which 3,381 were positive and 475 were negative resulting in a rating of 8.5 out of 10. 😎
The game is currently priced at 24.50€ on Steam, but you can find it for 17.12€ on Instant Gaming.
The Steam community has classified M.A.S.S. Builder into these genres:
Media & Screenshots
Get an in-depth look at M.A.S.S. Builder through various videos and screenshots.
System requirements
These are the minimum specifications needed to play the game. For the best experience, we recommend that you verify them.
Windows
- Requires a 64-bit processor and operating system
- OS *: Windows 7, Windows 8.1, Windows 10 (64-bit versions only)
- Processor: Intel Core i5 or better / AMD Phenom II X3 or better
- Memory: 8 GB RAM
- Graphics: NVIDIA GeForce GTX 1050 or better / AMD Radeon RX 560 or better
- Storage: 3 GB available space
- Sound Card: DirectSound Compatible
User reviews & Ratings
Explore reviews from Steam users sharing their experiences and what they love about the game.
Sometimes, it's best to read what's on the tin. M.A.S.S. Builder. A game about building battlemechs and taking them for a test in increasingly difficult missions. Most of the game actually revolves around building your own custom mech, whether it's from stock parts (but in METICULOUS detail) or even by making your own parts from basic shapes. Even for someone who can only make a collage out of stock parts, I found the building part to be rather fun. Though it would be nice if the more complex aspect wasn't obtuse and rather unintuitive but that's nothing Earth-shattering. I managed to figure out custom paints at least. Onto the gameplay part, the part where you're taking your mech for a (bumpy) test ride. I am playing with mouse/keyboard and am pretty satisfied with the controls. Didn't even need to rebind anything, and that's usually the FIRST thing I do in most games of this kind, 2D and 3D alike. But the gameplay is best described as a gem in the rough. On one hand, the game offers high-speed, Gundam-like action and even allows for dash-cancelling your attacks, but on the other hand, mechs still feel like mechs when it comes to combat, melee more than anything. And you'll be doing that a LOT, since ranged weapons don't pack half the power melee does. It feels as if the game has a bit of an identity crisis. The enemy numbers are pretty high (not exactly like Dynasty Warriors but still rather high) but already in chapter 3, the bigger ones start packing quite a wallop. Stop for 3 seconds, you get dogpiled on and your M.A.S.S. is blown to bits. And that's with Frames and Engines labeled as "built for sustained combat". Boss fights are... sometimes infuriating. The Quark types are colossal and VERY mobile for their size. Respawning enemies are mostly fodder you eliminate for ranged weapon ammo... but your ranged weapons are as effective against bosses as is throwing grapes at a charging rhinoceros. So most of the time, you're chasing the bosses around hoping not to get dogpiled on. You can avoid that in some fights by hitting the boss while flying, but Mission 19, for example, has enemies which actively aim at you and can take you down. The situation is similar when you're fighting enemy M.A.S.S. units. Bosses are even more mobile and elusive, often pack heavy ranged firepower, are accompanied by endlessly respawning grunts... and can always escape you with thrusters. And all boss types have VERY high HP, so the fights are awfully long with how you're constantly forced to chase down the bosses while constantly under attack from grunts. And some of them pack a serious punch, as if the bosses were not dangerous enough. Finally, there's a pretty serious flaw with the development sub-menu between missions. It can't be navigated, so higher level options simply can't be clicked on. This REALLY needs to be fixed ASAP. Conclusion: The game has a lot of potential both for "build-a-mech" players and those who just want the action part. But the boss fights really need some rebalancing and the player-used ranged weapons some buffing. It takes at least one entire magazine for taking down a GRUNT, so ranged firepower doesn't even tickle boss types. Maybe at least a reduction in the amount of grunts spawned during a boss fight. All in all, it's still a game I do recommend but also want to point out a few things I believe need improvement.
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This game is still in early access and is still being constantly worked on and updated over the past 6 years. So it's not a perfect game, but the game devs haven't given up on this game and that speaks volumes. They are adding to the game with each update and constantly keep their players updated with regular updates. Is it perfect no? Do they keep working on it, to make it better with each update, HELL YES! I love the fact that this is still an active project and begin worked on. The best way to describe this game is an arcade version of Armored Core that focuses a lot in customization and fun and isn't overpriced. It is a real hidden gem on steam and recommend it to every mech fan. Just load the demo and give it a shot for yourself.
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If you're buying, know this from someone who enjoys the game; This mech game is more like building Gundam kits than anything. M.A.S.S. Builder prioritizes customization over game-play, which isn't bad, just niche! A big flaw: Combat is shallow and feels repetitive when unlocking new parts, but because you get a lot of new parts to buy per mission, you have to be committed to the excitement of designing things to keep it from being a mood killer. If you're looking for a "game", I'd suggest; Armored Core 6 / TitanFall 2 / Into The Breach / Mechabellum (maybe) If you're looking for a (bipedal only, so far) mech designing program/game, this is it. If you find it satisfying to draw up custom designs on paper and pencil and see if you can put that in a game, this is more for you, as it is for me!
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This game is like Gundam Breakers & it's a pretty awesome nice alternative to it. Game is very slept on unless you're mecha savvy, mecha enthusiast, or still want more of the mecha genre itch. I've seen a lot of near 1:1 ratio of players with Gundams, Armored Core, Macross, EVA, Pacific Rim, Transformer or even something unique. The customization on creating your own M.A.S.S or Mecha is insane. This game has a campaign, a 2~8 players PVE, & 1v1 PVP or a 3 on 3 pvp. Definitely a 10/10 game made from a small indie team. It's not made by a bigger budget name studio or corpo either. Just know that it's still in early access. The gameplay is quite clunky still while it's still being polish out. Support these indie devs & let them cook.
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4 hours spent JUST customizing my mech. Have not even touched the gameplay, yet. 4 hours, well-spent. I regret nothing. UPDATE: 24 hours later I have built 3 mechs. It's taking longer as I continue to master the AMAZING creation system because I'm discovering new tricks to let me bring crazier designs to life. That said..... There is a WICKED learning curve to this thing. There's a 'help' menu that..... vaguely explains things. All of your learning is going to come from hands on experience, a ton of trial and error and just fooling around with everything. But it's WORTH IT. You can customize just about everything about it's looks. You can't really do much with the skeleton besides make it a little bigger. You can't make it smaller than the base size. I presume this is something they've thought about changing. I hope to see. Your appearance and armor have ABSOLUTELY NOTHING to do with your actual stats and performance. So that's a big win there for everyone who likes to keep function and fashion as separate as possible. Pretty much the same deal for your weapons. Fighting style will be determined by the kind of Grip and Attachment. You CAN dual-wield, once you unlock it. You also get missile pods that DO let you fire off a bazillion missiles. Fun, once you figure out how they work, which does not get explained to you..... The Satellite weapons can pack a punch, once you figure out how they work. Yep. No explanation. But there's a pretty nice and GROWING variety of weapon components to experiment with. PLAY WITH THEM. Try them out! They can be pretty cool. My favorites are the Photons and Beam Slasher satellites. The STATS are unlocked in the Development tab. And it is NUTTY how in-depth they've gone with them. You can build and slot your stat boosts pretty much however you want, as long as you unlock the desired nodes. Nodes on the SKILLS TREES! These trees are intimidating at first glance. It's overwhelming to look at and there is almost nothing in the way of tutorials to explain how it works. Just that 'Help' window up in the corner. And..... it could be better. It's an amazing mecha creator wrapped around game play that is kinda..... Meh. It's OKAY? I mean..... It wouldn't be much fun to make the totally awesome giant robots of your dreams if you couldn't take them for a spin, right? Well, that's pretty much what you get here. Build it, take it out, try it out crucible style. Murder waves and waves of trash mobs and get your Main Character groove on..... Then get your butt broken by the bosses. Spoiler: The Blue bar is his shield.... Which needs to be broken before you can damage it. The Yellow bar is kind of like a Defiance bar? Break it and the boss will be stunned for brief period, and then you can start chipping away at the RED bar that is their actual HP. They don't explain this to you either. You're welcome. Good luck. And by the way? Gameplay is how you unlock more parts and components to make cooler robots. But once you unlock them? You can swap things in and out to your hearts content for free. The trick is trudging your way through the gameplay to do it. I think it's worth the effort. There's a TON of potential here. The gameplay is.... only 'okay'. It IS a game. It could be better. It's not completely unplayable but the learning curve is WICKED. But there's POTENTIAL. Devs: MORE TUTORIALS AND INSTRUCTION. These systems are not even a tiny bit intuitive and not really the most user friendly. Fix it. Please. Players.... Play with EVERYTHING. Goof around with sliders and create custom colors with patterns and just HAVE FUN with it. Get stupid. Clown around with it. That's the only way you're really gonna figure out how things work. But it's worth it, once you start getting the hang of it. Don't give up on this game. That goes for the devs too. I hear it's a VERY small team, so they'll need your patience and support. I genuinely believe this CAN get better. It's TOTALLY worth picking up, even if you just spend your time building. Give it a chance and HAVE FUN.
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Frequently Asked Questions
M.A.S.S. Builder is currently priced at 24.50€ on Steam.
M.A.S.S. Builder is currently not on sale. You can purchase it for 24.50€ on Steam.
M.A.S.S. Builder received 3,381 positive votes out of a total of 3,856 achieving a rating of 8.45.
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M.A.S.S. Builder was developed by Vermillion Digital and published by Sekai Project.
M.A.S.S. Builder is playable and fully supported on Windows.
M.A.S.S. Builder is not playable on MacOS.
M.A.S.S. Builder is not playable on Linux.
M.A.S.S. Builder offers both single-player and multi-player modes.
M.A.S.S. Builder includes Co-op mode where you can team up with friends.
M.A.S.S. Builder does not currently offer any DLC.
M.A.S.S. Builder does not support mods via Steam Workshop.
M.A.S.S. Builder does not support Steam Remote Play.
M.A.S.S. Builder is enabled for Steam Family Sharing. This means you can share the game with authorized users from your Steam Library, allowing them to play it on their own accounts. For more details on how the feature works, you can read the original Steam Family Sharing announcement or visit the Steam Family Sharing user guide and FAQ page.
You can find solutions or submit a support ticket by visiting the Steam Support page for M.A.S.S. Builder.
Data sources
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Additionally, we incorporate data from the SteamSpy API, which offers insights into game sales and player statistics. This helps us present a comprehensive view of each game's popularity and performance within the gaming community.
Last Updates| Steam data | 25 April 2025 00:06 |
|---|---|
| SteamSpy data | 29 April 2025 12:09 |
| Steam price | 30 April 2025 04:31 |
| Steam reviews | 28 April 2025 09:52 |
If you'd like to dive deeper into the details about M.A.S.S. Builder, we invite you to check out a few dedicated websites that offer extensive information and insights. These platforms provide valuable data, analysis, and user-generated reports to enhance your understanding of the game and its performance.
- SteamDB - A comprehensive database of everything on Steam about M.A.S.S. Builder
- SteamCharts - Analysis of M.A.S.S. Builder concurrent players on Steam
- ProtonDB - Crowdsourced reports on Linux and Steam Deck M.A.S.S. Builder compatibility
Game modes
Multiplayer
Features
Online players
5
Developer
Vermillion Digital
Publisher
Sekai Project
Release
13 Sep 2019
Platforms
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