Buy Main Assembly Steam Key
Main Assembly Steam Key: compare prices from 19 offers (October 2026)
A Main Assembly Steam Key — also known as a CD Key or digital code — is the official activation code you redeem on Steam and keep in your library permanently. From €0.34 (€0.36 with fees) at Difmark Digital Keys · 12 verified stores, 19 offers in stock · Updated 01h 31min ago.
Steam Key
Prices change depending on the selected payment method.
Final prices with fees
How much does Main Assembly for PC cost right now?
Main Assembly for PC starts at €0.34 (€0.36 with fees) at Difmark Digital Keys, a Steam key.
That €0.34 (€0.36 with fees) already includes the Gocdkeys coupon, so apply it at checkout or the store will show you a higher price.
With 19 offers across 12 stores there is enough competition for the price to move, so the gap between the cheapest and the rest is worth checking before you buy.
That puts it 5% under its average of €0.42 since 2023, so today is a better entry point than most days of its life.
Shared account
Steam Key
Steam Gift
Is it worth buying the Steam Key for Main Assembly now or waiting?
That €1.16 (€1.45 with fees) key is at one of its best prices.
- Those €1.16 (€1.45 with fees) are 89% below what it usually costs, measured on the store price.
- Only 6 stores sell the Steam Key, and with that little competition the price barely moves.
- Not counting today, the lowest we have recorded for the Steam Key across 553 days is €1.17 — and today it is below that.
Worked out from 1,372 daily records of the Steam Key for Main Assembly across 12 stores. See the full price history.
The price does not include each store's payment fees. The percentage is measured on the store price, without coupons, because that is how we record the history. The analysis only counts Key offers. Shared accounts, Steam Gift and physical editions stay out, because they are not the same product and their prices move differently.
Which Main Assembly format should you buy?
The cheapest offer is already a key for your own account: €0.34 (€0.36 with fees) at Difmark Digital Keys, so there is no reason to weigh up a shared account here.
The 3 Steam Gift offers are pricier than the key and leave more room for error, because they depend on the region and on Steam friendship.
Can you activate Main Assembly in US?
13 of the 19 offers work on US — the Global ones plus the ones issued for your own region.
Why is there such an expensive Main Assembly offer?
One listing is worth ignoring: the Steam gift that G2A has at €24.16 (€24.45 with fees) is more than 67 times the cheapest offer and is not what this game costs. The number to work from is €0.34 (€0.36 with fees) at Difmark Digital Keys.
Most common FAQs when buying Main Assembly for PC in digital format:
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.
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.
Main Assembly
Is it worth it?
- 80/100Critics' average scoreOpenCritic · Strong
- 100%Critics recommend it6 critic reviews
What the press says
Sandbox games have always had a special place in our hearts and Main Assembly is no exception. Holding many similarities to games like Trailmakers and... Read more
Main Assembly offers a deep building system that allows you to create any type of robot you want, providing some beautiful worlds to explore in. Read more
Main Assembly offers many powerful tools to the most creative users with which to indulge themselves in building robots, as long as they have the... Read more
Main Assembly is like Minecraft for engineers. Read more
About the game
Coming up next
How to obtain more tickets
To win the tickets, your email in Gocdkeys must match your email in Discord.
For the Telegram tickets, open our bot @gocdkeys_bot, tap "Start" and send it the email of your Gocdkeys account in a private message (if you signed up with Steam, add a real email to your profile first).
Your review must be original. We check it by hand within 24 hours, and the tickets are only added if we approve it. Only one review per game counts, up to 2 a day.
Win free games with your tickets →Use your tickets to enter giveaways and auctions and win free games and gift cards.
Install it, link your account, shop as usual and the tickets land in your account.
Italiano
English
Español
Português
Deutsch
Français
What do our users think of Main Assembly for PC Digital?
No comments.
Rate and comment: your experience matters!
You are registered as:Minimum 50 characters. Tell us something useful about the game: filler comments aren’t approved and don’t earn tickets.