While I am known for preferring video games that are more like Excel sheets with a graphical interface, sometimes I do need something relaxing. My prime pick for that is Dorfromantik. You lay tiles making up a countryside out of fields, forests, villages, waterways, and train tracks.
Only complication - your tiles are limited, and to get more, you need to fulfill development goals like building a forest of a certain size.
Laying together a landscape is very, very relaxing. Give it a try.
Stay epic!