Steam keys will be available as soon as the Early Access starts in October.

I donated the same. But I did not get any key for steam. I installed Cattle and Crops - Launcher. When I filled up the data, I checked Steam.
And, to add, I can not go through the mission, I can only feed the animals. Thank you for your patience and help.


I apologize for the bad English.

There are no steam keys yet. They will be available as soon as Early Access launches on Steam