Buy cheap M.A.S.S. Builder key
14.09.2025 (Source: Steam)
Vermillion Digital
DRM
Region Global
M.A.S.S. Builder currently costs from €3.18 at GameBoost as Steam-Game key. The price applies with the coupon GAMEFOREST and includes €0.31 fees. We compare 16 available offers from 12 stores. As of 30. October 2026, 04:06.
Automatically checked, Updated 33 minutes ago
How we compare
€3.34from€3.18Price without coupon€3.34Coupon GAMEFOREST−14 % (−€0.47)Price with coupon (excluding fees)€2.87Price incl. Marketplace and payment fee+€0.31 €3.18
GameBoost
GAMEFOREST
Price comparison
14 results
| Store | Product | Coupon | Price | Go to store |
|---|---|---|---|---|
|
GameBoost
|
Steam Key
3199358
Updated:
In stock
DRM: Steam
Region: Global
|
GAMEFOREST
|
€3.34€3.18Price without coupon€3.34Coupon GAMEFOREST−14 % (−€0.47)Price with coupon (excluding fees)€2.87Price incl. Marketplace and payment fee+€0.31 €3.18
incl. €0.31 Marketplace and payment fee
|
Go to store |
Instant Gaming
|
Steam Key
2103479
Updated:
In stock
DRM: Steam
Region: Global
|
€3.49Price€3.49Price with PayPal fees+€0.07 €3.56
plus €0.07 PayPal fee
|
Go to store | |
Gameseal
|
Steam Key
988419
Updated:
In stock
DRM: Steam
Region: Global
|
€3.57Price without fees€3.17Price incl. card and PayPal fees+€0.40 €3.57
incl. €0.40 PayPal/card fee
|
Go to store | |
Loaded.com
|
Steam Key
808575
Updated:
In stock
DRM: Steam
Region: Global
|
€3.59Price€3.59
|
Go to store | |
driffle
|
Steam Key
963197
Updated:
In stock
DRM: Steam
Region: Global
|
€3.82Price without fees€3.22Price incl. card fees+€0.60 €3.82Price with PayPal fees+€0.10 €3.92
incl. €0.60 Card fee
plus €0.10 PayPal fee
|
Go to store | |
Eneba
|
Steam Key
848774
Updated:
In stock
DRM: Steam
Region: Global
|
€3.86Price without fees€3.20Price incl. card and PayPal fees+€0.66 €3.86
incl. €0.66 PayPal/card fee
|
Go to store | |
Kinguin
|
Steam Key
2352850
Updated:
In stock
DRM: Steam
Region: Global
|
€3.94Price without fees€3.08Price incl. card and PayPal fees+€0.86 €3.94
incl. €0.86 PayPal/card fee
|
Go to store | |
|
Kinguin
|
Steam Key
3148907
Updated:
In stock
DRM: Steam
Region: Global
|
€4.02Price without fees€3.15Price incl. card and PayPal fees+€0.87 €4.02
incl. €0.87 PayPal/card fee
|
Go to store | |
Gamivo
|
Steam Standard Key
691016
Updated:
In stock
DRM: Steam
Region: Global
Edition: Standard
|
GFORESTPROMO
|
€4.10Price without coupon€3.27Coupon GFORESTPROMO−5 % (−€0.16)Price with coupon (excluding fees)€3.11Price incl. card and PayPal fees+€0.99 €4.10
incl. €0.99 PayPal/card fee
|
Go to store |
|
Eneba
|
Steam Key
862949
Updated:
In stock
DRM: Steam
Region: Europe
|
€4.19Price without fees€3.51Price incl. card and PayPal fees+€0.68 €4.19
incl. €0.68 PayPal/card fee
|
Go to store | |
HRK Game
|
Steam Key
3164441
Updated:
In stock
DRM: Steam
Region: Global
|
€4.25Price without fees€3.41Price incl. card fees+€0.84 €4.25Price with PayPal fees+€0.17 €4.42
incl. €0.84 Card fee
plus €0.17 PayPal fee
|
Go to store | |
G2A
|
Steam Key
3526321
Updated:
In stock
DRM: Steam
Region: Global
|
GAMEFOREST8
|
€4.72€4.34Price without coupon€4.72Coupon GAMEFOREST8−8 % (−€0.38)Price with coupon€4.34
|
Go to store |
|
G2A
|
Steam Gift code
3547343
Updated:
In stock
DRM: Steam
Region: Global
|
GAMEFOREST8
|
€22.40€20.61Price without coupon€22.40Coupon GAMEFOREST8−8 % (−€1.79)Price with coupon€20.61
|
Go to store |
|
G2A
|
Steam Gift code
3483223
Updated:
In stock
DRM: Steam
Region: Europe
|
GAMEFOREST8
|
€22.40€20.61Price without coupon€22.40Coupon GAMEFOREST8−8 % (−€1.79)Price with coupon€20.61
|
Go to store |
| Released | 14. September 2025 |
| Type | Game |
| Website | to Website |
| Developer | |
| Publisher | Sekai Project |
| Steam rating | 85 % positive from 4,125 reviews |
| Platform | PC |
| Genres | |
| Setting | |
| Tags | |
| Style | |
| Story | |
| Perspective | |
| Features | |
| Game modes |
Here you'll find a selection of the cheapest offers in the M.A.S.S. Builder CD Key: Compare Prices. Save time and money by using our overview of the best game store offers to find the best price and get to your desired key quickly. Offers from the major key shops are updated daily, so you can always find the best deal.
Price history
Price trend of M.A.S.S. Builder
Tap or hover over the chart to see prices.
M.A.S.S. Builder on Steam
Source: SteamUpdates for M.A.S.S. Builder
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M.A.S.S. Builder Original Soundtrack Now Available On Steam
The original soundtrack for M.A.S.S. Builder is now available on Steam! This soundtrack features 36 tracks by composer, Van Narupai. The download will include both MP3 and FLAC file formats for you to enjoy.
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Post 1.0.0. AMA Answers!
Remember the AMA announcement we had weeks ago? The answers to them are now ready for viewing! Please check them out down below! More answers in the comments section as well, as we exceeded word count in this news posts.Question: I hope to…
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Post 1.0.0. What's Next + AMA Announcement!
We've been hotfixing the 1.0.0 launch of M.A.S.S. Builder all week, hope you all were able to have fun with the things that aren't broken! For now, we'd like to tell you all about what's coming next to M.A.S.S. Builder! Let's get the big di…
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M.A.S.S. Builder Full Release 1.0.0. LAUNCH!
Hello! We're finally ready to announce the M.A.S.S. Builder major update 1.0.0! We're finally out of Early Access into full release with this update, completing the whole M.A.S.S. Builder Campaign story! It has been a long journey up to thi…
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M.A.S.S. Builder Full Release Date Announcement
Hello everyone! We have a special announcement instead of a WIP today... It's finally time to say goodbye to Early Access and head into Full Release version 1.0.0 come next week September 14th! It has been a few years now since we first rel…
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WIP: 1.0.0 New Mission Sneak Peek
Hello everyone! Today, we're only able to have a short sneak peek of the upcoming mission, but fret not, it's a mysterious and ominous lot to take in! Where in the world is this place, what kind of mission are we assigned to? You'll receive…
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WIP: 1.0.0 Weapon Attachment System In Depth
The weapons attachment system is finally here in version 1.0.0. As promised last week, we will be giving a whole set of explanations on what it covers, how it works, and the changes that we'll be making with the Bullet Launchers attachment…
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WIP: 1.0.0 Weapon Attachment System Showcase
Hello everyone! We're back this week with a showcase full of the up-and-coming weapons attachment system. It's a system that's similar to the launcher's attachment we've had before, but they work on your weapons instead. While we only have…
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WIP: 1.0.0 New Mission Sneak Peak
As promised! Here is a WIP update for the upcoming 1.0.0 update featuring one of the new missions that will be available in the update! This mission will feature an area filled with the highest concentration of Void particles, where Quarks…
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Incoming Patch Status Update
tl;dr Update will be coming in SeptemberHello everyone. First off, let us apologize for not having frequent updates like before and making the project feels like it's dead. We've been busy working on the various systems to make the next upd…
All announcements on Steam
Tags
- Mechs
- Action RPG
- Character Customization
- Robots
- Gun Customization
- Indie
- Hack and Slash
- Sci-fi
- Anime
- Shooter
- Action
- Singleplayer
System requirements
Minimum
- Requirement
- Requires a 64-bit processor and operating system
- Operating system *
- Windows 7, Windows 8.1, Windows 10 (64-bit versions only)
- Processor
- Intel Core i5 or better / AMD Phenom II X3 or better
- RAM
- 8 GB RAM
- Graphics
- NVIDIA GeForce GTX 1050 or better / AMD Radeon RX 560 or better
- Storage
- 3 GB available storage
- Sound card
- DirectSound Compatible
Recommended
- Requirement
- Requires a 64-bit processor and operating system
DLCs and expansions
| DRM | Steam |
| Offers | 14 |
Common questions about M.A.S.S. Builder
How much does M.A.S.S. Builder cost right now?
M.A.S.S. Builder currently costs from €3.18 at GameBoost as Steam-Game key. We compare 16 available offers from 12 stores. As of 30. October 2026, 04:06.
Where is M.A.S.S. Builder cheapest?
The cheapest is M.A.S.S. Builder at GameBoost, as Steam-Game key for €3.18 with the coupon GAMEFOREST.
How much does the cheapest Steam-Game key cost incl. fees?
The cheapest Steam-Game key costs €3.18 at GameBoost. Includes €0.31 fees.
Which edition is cheapest?
The cheapest available edition is Default from €3.18. Early Access is available from €3.47.
Which platform do these offers apply to?
Offers for PC are compared. Check the edition, activation service and region on each offer.
Which game modes does this version offer?
Game modes listed for this version: Singleplayer, Online Co-op.
Which languages are listed for this version?
Englisch, Japanisch, Chinesisch (vereinfacht), Thai, Chinesisch (traditionell). The details don't distinguish between interface, subtitles and voice audio.
Can I play the PC version with a controller?
Steam marks the PC version with full controller support. Source: Steam product page.
What are the minimum requirements for the PC version?
Operating system: Windows 7, Windows 8.1, Windows 10 (64-bit versions only)
Processor: Intel Core i5 or better / AMD Phenom II X3 or better
RAM: 8 GB RAM
Graphics: NVIDIA GeForce GTX 1050 or better / AMD Radeon RX 560 or better
Storage: 3 GB available storage
Source: Steam product page.
Processor: Intel Core i5 or better / AMD Phenom II X3 or better
RAM: 8 GB RAM
Graphics: NVIDIA GeForce GTX 1050 or better / AMD Radeon RX 560 or better
Storage: 3 GB available storage
Source: Steam product page.
Which release date is listed?
Release date of this version: 14.09.2025.
Reviews
How do you like M.A.S.S. Builder?
Screenshots
Source: Steam
