What is a Main Assembly Steam key?

A Main Assembly Steam key is a digital code that activates the game on your Steam account. After purchase you redeem the key in the Steam client and download the game — make sure the key's activation region covers your country.

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SteamUnited States
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$3.99Best price

Key offers are sold by Discover Games; Steam, GOG and Microsoft rows link to each official store. Offers shown for your selected region.

About Main Assembly

You’re the designer, engineer and architect if you can imagine it you can create it! Construct robots of any shape or size from eight-legged spider bots to eerie UFO contraptions.

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Frequently asked questions

What is a Main Assembly Steam key?: A Main Assembly Steam key is a digital code that activates the game on your Steam account. After purchase you redeem the key in the Steam client and download the game — make sure the key's activation region covers your country.

Steam · MENA (USD)	$2.09-80%
Steam · Saudi Arabia	SAR 6.99-80%
Steam · United Arab Emirates	AED 10.60-80%
Steam · Kuwait	KWD 0.670-80%
Steam · Qatar	QAR 8.39-80%
Steam · United States	$3.99-80%