About the Game
Transform a Barren World into a Thriving Planet
Plan B: Terraform is a calm and contemplative sci-fi simulation game set in a near future where humanity must look beyond Earth for survival. Your mission: shape a newly discovered planet into a habitable world. Explore a vast, hex-based terrain with over a million tiles and harness a full ecosystem simulation.
Shape Climate, Water, and Life
Raise global temperatures with greenhouse gas generators, unlock underground ice to form flowing rivers and vast oceans, and restore vegetation across the land. Experience dynamic weather systems, including evaporation, wind patterns, and rainfall. Turn a lifeless rock into a living world covered in forests, rivers, and oceans.
Build Supply Chains and Grow Cities
Extract minerals, manufacture goods, and move them with trucks, trains, drones, and ships. Establish automated supply lines to support expanding cities, transforming small outposts into thriving metropolises with populations in the millions. Every stage of growth depends on your ability to manage logistics, optimize infrastructure, and keep automation running smoothly.
Screenshots
7 images
Version Information
Steam Patch Notes
Official update history
This time it's a small update, released earlier than planned, to quickly include the important Unity fix for the "CVE-2025-59489 security vulnerability".
But there’s also a nice little improvement: when you select multiple depots or factories of the same type, you can now change their item or recipe all at once!
We’ve also been discussing ideas for a possible big future update or DLC. Nothing decided yet, but some very exciting concepts are on the table! If you'd like to participate in these early discussions, join our Discord and opt in for the Advisor role. We regularly ask for their input on upcoming ideas.
But don't hesitate to join anyway: other Discord members are usually pinged only once every few years, for a new EA launch or release. And there is also a mailing list, also only used for those rare occasions.
Plan B - v1.0.3 build 1221
Major improvements:
- Added the Item/Recipe set button on a multi-selection of similar depots or factories items. Same for Backup Supply option.
Improvements:
- Undo a drag keeps containers (behaves as a drag - cannot be used to duplicate containers)
Balance:
- Cursor visibility: a little bigger, outline wider. Cursor build anim visible more often
- We can now click on minimap while building a road
Bugs fix:
- Updated Unity with its recent vulnerability fix
- Rectangle selection can go below the minimap
- Fixed rare issue with farms
- Cancelling a selection does not close an open item category build menu
Minor:
- Building error message delay set to 5s
- Fixed text spelling error
- vsync off by default, and 60 FPS as target framerate by default
Balance:
- 2 instead of 3 carbon in the nitrogen + carbon => compost recipe
- 3 carbon instead of 4 carbons in the carbon => polymer recipe
Current Release
Build 22264648
Uploaded Jul 09, 2026
System Requirements
How to Install
Plan B Terraform.exe to play
Troubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
615 MB
22264648
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Download Plan B: Terraform for PC with a direct link or via torrent. Get the full version of Plan B: Terraform for free. Plan B: Terraform is a Indie released by Gaddy Games.