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.
- All reviews
- Very positive85% of 2,222
- Platforms
- PC
- Release date
- Sep 14, 2025
- Developer
- Vermillion Digital
- Publisher
- Sekai Project
Get M.A.S.S. Builder
-
PCSteam
-30%$24.99$17.49View on Steam
How can you play M.A.S.S. Builder together?
M.A.S.S. Builder supports online co-op, based on its Steam store page and player tags.
| Where | Together | Against each other |
|---|---|---|
| Same screen | No | No |
| Online | Yes | No |
| LAN | No | No |
Questions people ask
What platforms is M.A.S.S. Builder on?
M.A.S.S. Builder is available on PC.
Does M.A.S.S. Builder have split screen?
Split screen isn't listed for M.A.S.S. Builder, so it's most likely online only.
Can you play M.A.S.S. Builder online with friends?
Yes. M.A.S.S. Builder has online co-op.
Is M.A.S.S. Builder crossplay?
Cross-platform multiplayer isn't listed on M.A.S.S. Builder's Steam page.
