M.A.S.S. Builder

M.A.S.S. Builder cover art

Publisher: Sekai Project · Release date: 2025-09-15

Where is M.A.S.S. Builder cheapest in Australia?

The cheapest M.A.S.S. Builder key that activates in Australia costs $5.33 at Eneba (Steam, GLOBAL key). That is 8% less than the dearest offer we track. Checked .

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 prices

Prices last checked . Each is the price the store lists; marketplaces add a service fee at checkout.

Questions about M.A.S.S. Builder

What is the lowest M.A.S.S. Builder price in the last 30 days?

The lowest price we recorded in the last 30 days was $5.33. The cheapest offer today is $5.33.

Do these M.A.S.S. Builder prices include fees?

Not always. Stores that sell their own keys, such as Steam and GOG, add no service fee, though sales tax is added at checkout in the US and Canada. Marketplaces add a service fee at checkout, and some payment methods add their own, so on a marketplace the total at checkout will be higher than the price listed here.

Will every M.A.S.S. Builder key work in Australia?

Not all of them. Keys sold for another region (EUROPE) may not activate on an account registered in Australia; that applies to 2 of the 8 offers here. The cheapest key named above does.

Is it safe to buy a cheap M.A.S.S. Builder key?

Official stores sell their own keys. Marketplaces and third-party sellers sell keys from other sellers: check the seller and the key’s region before you buy, and pay through the store’s own checkout.

M.A.S.S. Builder reviews

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Steam: Very Positive (85%) · 3,738 reviews