Price stats
- All-time low · all stores
- USD 13.99 Apr 2026+79%
- Lowest in 52 days
- USD 17.49
- Highest in 52 days
- USD 24.99
The all-time low is CheapShark's, across every store it tracks. Our own record starts 29 Aug 2026.
Price history USD 17.49 – USD 24.99
Does M.A.S.S. Builder go on sale?
Yes. Since we started watching on 29 Aug 2026, M.A.S.S. Builder has been on sale once, at -30% (USD 17.49, 1 Oct – 8 Oct 2026). In the Autumn Sale (1 Oct – 8 Oct 2026) it was USD 17.49 (-30%). Its lowest price ever, in any store, is USD 13.99 (Apr 2026), by CheapShark's records.
Next possible discount: 7 Nov 2026 at the earliest. Steam allows no discount within 30 days of another. Steam's rules let it join the Winter Sale (17 Dec).
| 1 Oct – 8 Oct 2026 | -30% | USD 17.49 |
|---|
Every price change DropWatch has recorded from Steam since 29 Aug 2026, in USD. The earliest dates follow Steam's discount rules and the US prices we see; a publisher may not discount at all.
Also available elsewhere USD, via CheapShark
Regional prices on Steam
| United States | USD 24.99 |
|---|---|
| Australia | AUD 36.50 |
| Brazil | BRL 73.99 |
| Canada | CAD 32.50 |
| Germany (euro) | EUR 24.50 |
| United Kingdom | GBP 20.99 |
| India | INR 1100.00 |
| Malaysia | MYR 61.00 |
| Singapore | SGD 22.00 |
Today's price in each region we collect. Steam sets these per region rather than by exchange rate.
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.
- Developer
- Vermillion Digital
- Publisher
- Sekai Project
- Released
- 15 Sep 2025
- Platforms
- Windows
- Genres
- Action, Indie, RPG, Strategy
