4-Player Co-op OUT NOW!
Pebbledust Games
4-Player Co-op is OUT NOW!
Terraform Mars Together You can now invite up to 3 friends into your world and terraform Mars together! Build bases, explore, mine, drive vehicles, automate factories, discover new life, and complete the entire game together from start to finish.
Up to 4 Players Co-op isn't a separate mode—it's the full Blossom experience. Play through the complete story and campaign alongside your team with full shared progression.
Everything shared in your world:
- Buildings, machines, and automation
- Terraforming progression
- Power and water networks
- Research, objectives, and vehicles
- The story and ending
While working together on the same world, each player maintains their own backpack, equipment, appearance, and achievements. You can also customize your Blossom’s colors so everyone is easy to recognize.
Existing Saves Are Compatible Best of all, your current saves are fully supported! If you've already spent dozens of hours building your world, simply load your save and open it to co-op right now—no restarting required. Continue playing solo exactly as before, or invite friends into your existing world at any time. Single-player remains completely unchanged.
For more details you can read up FAQ.
Looking for Teammates?
Don't have anyone to play with?
Join #coop channel on the Discord server where you can find other players to start a world together.
See you on Mars
— Pretty Soon
This announcement was originally published by Pebbledust Games on Steam on Aug 31, 2026.
Open the original on Steam