M.A.S.S. Builder
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.
Offers
What are keyshops?Official stores
Official stores with direct support.
Keyshops
Third-party resellers. Often cheaper, without official store support. Keyshop prices vs Steam →
Demo (1)
Try this game before buying.
DLCs (1)
About M.A.S.S. Builder
M.A.S.S. Builder is an Action RPG with players piloting a M.A.S.S. (Mechanical Assault Skeleton Suit) as a commander of a private military company, setting out to help combat the threat of Quarks. You will build, customize, and fight to save the world, or at least, have fun creating and customizing your perfect mechanical suits.
The game features an in-depth customization system that has a clear distinction between equipment that gives status and equipment of pure aesthetics. You will be able to customize everything to suit your playstyle while looking good in this fast-paced mechanical combat.
Key Features
- Customize your own M.A.S.S. without the worry of using cool looking armors with low stats, all parts don't have stats!
- Fast paced movement through the battlefield with boosters for you to move around and attack through your enemies.
- Fight against hordes of beastly aliens called Quarks, and giant ones that will aggressively hunt you down.
- Pick how your weapon looks and shoots with hundreds of parts available to mix and match.
- A world compelling and rich with information for you to immerse yourself in.
Game details
Game details
Age ratings
Languages
M.A.S.S. Builder price history
Lowest tracked price: CA$4.97 (Jul 24, 2026) · current best: CA$4.97 across 7 stores.
M.A.S.S. Builder player count & reviews
43% positive reviews in the last 30 days (85% all-time) · 24 peak players in the last 30 days.
M.A.S.S. Builder — frequently asked questions
Where can I buy M.A.S.S. Builder at the cheapest price?
Right now the cheapest offer for M.A.S.S. Builder is CA$4.97 at Eneba. KingsPrice compares 7 offers from 7 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price M.A.S.S. Builder has ever been?
The lowest price KingsPrice has tracked for M.A.S.S. Builder is CA$4.97 (recorded on Jul 24, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How many people play M.A.S.S. Builder?
M.A.S.S. Builder peaked at 24 concurrent players on Steam in the last 30 days (highest on Jul 8, 2026). The player chart on this page updates daily.
Is it safe to buy a M.A.S.S. Builder Steam key from a keyshop?
Keyshops are marketplaces that resell game keys, usually below official store prices. The keyshops listed on KingsPrice deliver genuine Steam keys, but buyer protection differs from official stores — check the shop's rating and refund policy before buying. You can hide keyshop offers at any time with the keyshops toggle. Keyshop prices vs Steam →
How can I get M.A.S.S. Builder at a discount?
Create a free price alert on this page and KingsPrice will email you when M.A.S.S. Builder drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
Minimum
- Requires a 64-bit processor and operating system
- OS *: Windows 7, Windows 8.1, Windows 10 (64-bit versions only)
- Processor: Intel Core i5 or better / AMD Phenom II X3 or better
- Memory: 8 GB RAM
- Graphics: NVIDIA GeForce GTX 1050 or better / AMD Radeon RX 560 or better
- Storage: 3 GB available space
- Sound Card: DirectSound Compatible
Recommended
- Requires a 64-bit processor and operating system
