The new content is pretty much everywhere, especially in the mid and late game. But above all, it completes the game as a whole, just as it was originally conceived. And the new content adds a link and coherence between the different elements: trees produce the oxygen that farms need, research centers lead to the expansion of secondary cities and link them together, and so on.
A few important things to note:
- SAVE RESET: old saved games are not compatible with this new version. To continue playing old games, activate the branch "v0.8.4" (in the Steam properties of the game). I'm sorry for that, we didn't have choice, too many breaking changes in this update. But it's the only time it will happen, you'll be able to continue playing with v0.9 after v1.0 release.
- MOD ERRORS: if the game cannot load, please check if you have some mods (steamworks or bepinex) as most of them are not yet compatible with v0.9
- LOCALISATION / CROWDIN : if you wish to help translate a few sentences, you are most welcome! Here is the Crowdin page: https://crowdin.com/project/plan-b-terraform/invite/public
There will be a 20% discount during the Spring Sale, before the price is increased from $14 to $16 (the final price for the v1.0 release). It was the same with v0.7 and v0.8: the idea is that you pay only for what is already done, rather than for promises.
We will now be working on a number of small features, but above all on polishing and balancing. Then we will work on some small bonus for 1.0 (scheduled for release in Q3 of this year), like a nice creative mode.

Here is the full changelog:
Plan B - v0.9.0 build 963
Major Improvements:
- All levels changed (23 levels now) with new objectives, unlocked items, hints.
- Space Elevator, Research Centers, Farms
- Simple story with dialogs
- UI completely reworked
- Info panel, unlocked progressively (replacing both help and tutorial).
- New buildings: farms, silos, food processing plants, 3 research centers, space elevator
- New containers: space elevator cable, carbon nano tubes, robotics, supra conductors, various seeds, field seeds, harvest, quality food
- 4 new achievements (3 hidden)
- New city designs (3 specialisations)
- UI: completely reworked: standardization of colors, size, etc
- UI: minimap resizable, toggable, clikable cities and landmarks, rectangle shape
- UI: horizontal item bars, with a favorite item system
- UI: dialog, with animated and aging characters
- Info screens: How to play, logistics, global infos, trucks, city supply, advanced ui, terraforming, enhanced view, recycling, trains, research centers, trees, farms.
- Changed items categories
- Oxygen in charts
- Some in-game event best not to spoil
- Updated localisation with Crowdin
- Lot of technical changes
- Many balance change in recipes, etc, too many to be compared with v0.8
- Changed first 2 objectives (now "produce 5 extractors / factories")
- Depots in contact with suppliers and consumers have now highest priority (like if contact with consumer only)
- "Enter" to rotate wall pumps, instead of Shift
- Now keep containers when we change factory recipe or if we overwrite any building
- Fixed pause and speed icon bugs
- Fixed new planet screen options texts refresh
- Fixed bug with horizontal transport lines on heptagons
- Reduced poles big mountains
- Fixed some UI artifact
- Fixed bug fx in pause
- Fixed building & destroy sounds from far away
- Set constant sound volume for build/destroy fx
- Fixed some minor ui glitch
- Fixed a low framerate after a lot of save loads.
- Fixed invisible terrain (on extreme left/right of the map)
- Fixed enhanced view water triangle size near poles
- Fixed recipe progress bar not going up to 100%
- Fixed bug with backup supply option when upgrading a depot
- Fixed dragged ghost buildings
- Fixed dead cities models
- Improved perfs with containers models
- Fixed rails stop ground image
- Fixed "nb vehicles" on ships
- Shift+F5 to save with custom suffix (debug purposes)
- Recipe ingredients shown in items buttons
- Added "incompatible save" warnings in loading screen for incompatible saves
- Improved /!\ warning icons
- Some 7-hex buildings in cities (only 1 yet)
- Escape key on mod screen
- Removed all unused localization sentences
- Added some missing tooltips
- Changed date display
- Fixed "shift message" with pile of dirt item