What is the key for M.A.S.S. Builder on PC?

It is a key that will allow you to download the game M.A.S.S. Builder on your PC from official download platforms.

What's the best price for buying the key of M.A.S.S. Builder for PC?

As of 23/06/2026, in United States, the best price we have found in our selection of online stores that include the key for M.A.S.S. Builder on PC is €2.93.

Which digital format of M.A.S.S. Builder should I buy for PC? An Account or a Steam Key ?

The account format is cheaper but has a more complicated activation process compared to a simple key or code. It may also cause access issues in the future, which is why we only recommend it to users who are familiar with this format or have used it before. If you’re looking for a simpler and safer activation process and don’t mind paying a bit more, we recommend buying the Steam Key format.

If I buy the account format of M.A.S.S. Builder, will the store provide all the activation instructions?

Yes, stores that sell this format usually guide users through the entire activation process, and if any issues arise, they offer customer support services. And if they don’t help, don’t worry—we’re here to assist you too.

Why is the Steam Key of M.A.S.S. Builder safer than the account format?

The Steam Key format is what we always recommend due to its ease of use and higher security compared to any other format. You just need to redeem the key in your account to download M.A.S.S. Builder to your game library. The account format requires more complicated steps and is more prone to errors during activation.

What issues can arise when activating a Steam Key of M.A.S.S. Builder?

The only issue we’ve encountered in 13 years is receiving a duplicate key that doesn’t work. In that case, simply contact the store where you bought M.A.S.S. Builder, and they will provide a new key. You can also contact us, and we’ll help you out.

How long will I have to wait to receive the Steam Key of M.A.S.S. Builder after purchasing it from a store?

Delivery times vary by store. For example, in the case of Instatgaming, Eneba, G2a, or Kinguin, delivery is usually instant or takes just a few minutes. These stores rarely delay game deliveries.Other stores may take 30–40 minutes depending on game availability. On release days, delivery times may be slightly longer.If you notice an unusually long delay, contact the store or us, and we’ll resolve it as quickly as possible.

What guarantee do I have that the listed stores are reliable?

At Gocdkeys, we only list the most well-known stores that have passed our quality checks. One of the most important factors is good customer support, and all listed stores offer it.There have been occasions when those services were overwhelmed, which is why we also offer 24/7 customer support to help resolve any issues or questions.In any case, we always offer a 100% guarantee, so you won’t have any problems, and if you do, we’ll resolve them as soon as possible.

Can I return a digital game for PC?

Some digital formats allow returns under certain conditions.

The store does not send my order and does not respond to support. What can I do?

Don't worry, we have the solution. We will handle it ourselves.

The final price is higher than indicated.

Many stores add payment fees, taxes,... in the cart. So be prepared to spend a little more.

I'm desperate: They don't send me the game, the store ignores me. I think I've lost my money.

Calm down, don't panic. Contact us and we will help you resolve it as soon as possible.

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Prices for M.A.S.S. Builder Steam Key for PC (June 2026)

The cheapest price is 2.93€ (-79%) at Kinguin with a rating of 4.6 (115.9k reviews) · Version Steam Key · Region Global · We compare prices at 9 verified stores with 12 offers in stock · Updated on 23/06/2026 14min. ago

Steam Key

Cheapest

4.6(115.9k)

€2.93 €3.25

JUNGOC10

-10%

Copied!

Steam Key

Official store

4.7(43.8k)

€14.23

No code available

View 12 offers from €2.93

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Historical prices

Current minimum price

Medium price

Official stores are authorized distributors, and while their prices may be higher than Key stores, their reliability is 100%.

“Choose it if you don’t mind the price difference”

Key stores are resellers and marketplaces, which is why they are usually cheaper than official stores. We only show the best ones, so you can rest assured. Plus, we offer our guarantee against any issues.

“Choose it if you’re looking for a great discount”

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We will start the verification process of your account, which may take 48-72 hours.
If you have not broken any of our rules, we will send you the cheapest version of the game to the email address associated with your account.
In the event that the game is out of stock or only available in a format such as accounts or physical, we will offer the possibility of an exchange for a prepaid card for the minimum value of the game on our platform.
For console games, a prepaid card of different amounts will be given instead of the game, due to regional limitations.
Your tickets will disappear from your account
This promotion is only available to US, UK and EU users.
Game redemption is only allowed once every 6 months per user.

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You have enough tickets!

( You have )

Product you are redeeming

We will start the verification process of your account, which may take 48-72 hours.
If you have not broken any of our rules, we will send you the cheapest version of the game to the email address associated with your account.
In the event that the game is out of stock or only available in a format such as accounts or physical, we will offer the possibility of an exchange for a prepaid card for the minimum value of the game on our platform.
For console games, a prepaid card of different amounts will be given instead of the game, due to regional limitations.
Your tickets will disappear from your account
This promotion is only available to US, UK and EU users.
Game redemption is only allowed once every 6 months per user.

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Gocdkeys Recommendations What are you looking for? Select your region Which version do you prefer? Search results

The cheapest offer is from Kinguin in KEY format for a price of 2.93€

Buying at Kinguin saves you 79% compared to the official store

Users rate Loaded4.8(222.4k) best, highlighting its reliability and fast delivery, with a price of 5.79€

Editions Steam Key Steam Gift

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Key stores

Kinguin
Gamivo
Eneba
G2A
Cdkeys Com
HRKGame
Instant Gaming

4.6 (115.9k)

Subscription from 2.99€/month

-15%

JUNGOC10 for -10%

Copied!

€3.25 €2.93

Region Global

Product type Steam Key

Delivery 5' - 10'

Fees +€0.36

3.8 (48.9k)

Subscription from 2.01€/month

-9%

GCDKGamivo for -24%

Copied!

€3.46 €2.63

Region Global

Product type Steam Key

Delivery 5' - 10'

Fees +€0.22

4.3 (301.3k)

Cashback Up to 14%

Gocdkeys8 for -8%

Copied!

€3.49 €3.21

Region Global

Product type Steam Key

Delivery Instant

Fees +€0.27

4.3 (301.3k)

Cashback Up to 14%

Gocdkeys8 for -8%

Copied!

€3.68 €3.39

Region Europe

Product type Steam Key

Delivery Instant

Fees +€0.28

4.0 (340.9k)

No code available Copied!

€4.46

Region Global

Product type Steam Key

Delivery 5' - 10'

Fees +€0.01

4.8 (222.4k)

Cashback Up to 1%

No code available Copied!

€5.79

Region Global

Product type Steam Key

Delivery Instant

Fees -

4.2 (29.7k)

Gocdkeys12 for -12%

Copied!

€17.30 €15.22

Region Global

Product type Steam Key

Delivery 5' - 10'

Fees +€2.82

4.7 (824.5k)

No code available Copied!

€17.09

Region Global

Product type Steam Key

Delivery Instant

Fees +€0.34

4.0 (340.9k)

No code available Copied!

€37.18

Region Global

Product type Steam Gift

Delivery 5' - 10'

Fees +€0.11

4.0 (340.9k)

No code available Copied!

€37.18

Region Europe

Product type Steam Gift

Delivery 5' - 10'

Fees +€0.11

Official stores

Greenmangaming
Steam

4.7 (43.9k)

No code available Copied!

€14.23

Region Global

Product type Steam Key

Delivery 5' - 10'

Fees -

1.8 (3.7k)

No code available Copied!

€24.50

Region Global

Product type Steam Key

Delivery Instant

Fees -

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This version of the game M.A.S.S. Builder is a cd key or digital key for PC, and must be downloaded and activated from official game platforms, such as STEAM. From Gocdkeys we group both the official shops (Steam, Greenmangaming,...) and the unofficial ones (G2A, Instantgaming, Kinguin,...) that sell the key of this Mechs combat construction simulator. Although we will have to build them, we will also be able to test their qualities and characteristics in combat against an enemy that threatens the existence of humanity.

What digital versions of M.A.S.S. Builder for PC will you find in Gocdkeys?

From Gocdkeys we always compare digital versions of STEAM games. Although most versions are in cd key or digital key format, there are some versions in "STEAM Gift" format, which once purchased are activated through an activation link that is sent to the email.

Many of these "STEAM Gifts" and M.A.S.S. Builder cd keys can have regional blocking, which means that they can only be activated from certain regions, so pay attention to this information.

Before buying M.A.S.S. Builder you should know that...

It all starts with the appearance of some unknown beasts of the void. At that moment, it is when the war for the survival of humanity began. In a last attempt by humans not to become extinct, they were forced to evolve their technology to unsuspected limits, and that's when the technology of the M.A.S.S. was born.

The game is an action RPG in which we will build and pilot an M.A.S.S. (Mechanical Assault Skeleton Suit or Mechs) as commander of a private military company, with the aim of helping to combat the threat of the Quarks. We'll build, customize and fight to save the world, and if you're only interested in the construction part, we can devote ourselves exclusively to building the perfect war machines and see how others pilot them, to later adapt their weaponry and make them more destructive.

Additional options to buy this game on Steam

If you prefer to buy this game on PC without linking a bank card, you can use a Steam Gift Card, a prepaid card that allows you to add balance to your account and purchase games directly on the Steam store.

In practice, a €50 Steam Gift Card is usually enough to buy most Steam games currently available and is redeemed using a digital code. It works with all PC games available on Steam and is a common alternative for buying games without entering payment details.

Most common FAQs when buying M.A.S.S. Builder for PC in digital format:

What is the key for M.A.S.S. Builder on PC?

It is a key that will allow you to download the game M.A.S.S. Builder on your PC from official download platforms.
What's the best price for buying the key of M.A.S.S. Builder for PC?

As of 23/06/2026, in United States, the best price we have found in our selection of online stores that include the key for M.A.S.S. Builder on PC is €2.93.
Why is the Steam Key of M.A.S.S. Builder safer than the account format? See more

The Steam Key format is what we always recommend due to its ease of use and higher security compared to any other format. You just need to redeem the key in your account to download M.A.S.S. Builder to your game library. The account format requires more complicated steps and is more prone to errors during activation.
What issues can arise when activating a Steam Key of M.A.S.S. Builder? See more

The only issue we’ve encountered in 13 years is receiving a duplicate key that doesn’t work. In that case, simply contact the store where you bought M.A.S.S. Builder, and they will provide a new key. You can also contact us, and we’ll help you out.
How long will I have to wait to receive the Steam Key of M.A.S.S. Builder after purchasing it from a store? See more

Delivery times vary by store. For example, in the case of Instatgaming, Eneba, G2a, or Kinguin, delivery is usually instant or takes just a few minutes. These stores rarely delay game deliveries.

Other stores may take 30–40 minutes depending on game availability. On release days, delivery times may be slightly longer.

If you notice an unusually long delay, contact the store or us, and we’ll resolve it as quickly as possible.
What guarantee do I have that the listed stores are reliable? See more

At Gocdkeys, we only list the most well-known stores that have passed our quality checks. One of the most important factors is good customer support, and all listed stores offer it.

There have been occasions when those services were overwhelmed, which is why we also offer 24/7 customer support to help resolve any issues or questions.

In any case, we always offer a 100% guarantee, so you won’t have any problems, and if you do, we’ll resolve them as soon as possible.

Need more help? Use our FAQs.

+ 15 Tickets for comment I want more!

What do our users think of M.A.S.S. Builder for PC Digital?

5/5 (2 Comments)

0

paubono

2020-05-03 17:46:52

Muy buen juego lo tendria que desgcargar mas personas porque neste juego es de los mejores que he jugado muchas gracias por tratraer juegos así.

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About of M.A.S.S. Builder

Release date	10/11/2019
Users rating	5/5 (2 Comments)
Steam comments	Very Positive Very Positive (3693 Comments)
Categories	RPG
Tags Indie Multiplayer Singleplayer Character Customization RPG Action Action RPG Shooter Sci-fi Anime

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English, Japanese, Simplified Chinese, Thai, Traditional Chinese

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Buy M.A.S.S. Builder CD Key for PC

Prices for M.A.S.S. Builder Steam Key for PC (June 2026)

Recommended

Cheapest

Official store

Additional options to buy this game on Steam

Most common FAQs when buying M.A.S.S. Builder for PC in digital format:

What is the key for M.A.S.S. Builder on PC?

What's the best price for buying the key of M.A.S.S. Builder for PC?

Why is the Steam Key of M.A.S.S. Builder safer than the account format? See more

What issues can arise when activating a Steam Key of M.A.S.S. Builder? See more

How long will I have to wait to receive the Steam Key of M.A.S.S. Builder after purchasing it from a store? See more

What guarantee do I have that the listed stores are reliable? See more

Need more help? Use our FAQs.

What do our users think of M.A.S.S. Builder for PC Digital?

0

About of M.A.S.S. Builder

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How to obtain more tickets

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M.A.S.S. Builder