Be cautious when downloading .7z files from unofficial sources. For the most secure experience, always download The Planet Crafter through verified storefronts to ensure the file is free of malware and compatible with current save files. Planet Crafter 1.0 is OUT NOW! - SteamDB

If you are using this specific build, you may be missing out on these major updates found in the official Steam version :

You can always check your current version number in the bottom-right corner of the screen after loading a save file. Safety Warning

The most recent major update, which refined the late-game experience. How to Manage Game Builds