Sorry for the necro but if you want to make a world map the best resources possible for that would be Inkarnate for a regular world map or Azgaar's fantasy map generator you want the ability to customize literally everything. If you do decide to go that route and need help hmuI did a proof of concept for every type of art asset I would need. (World Map gave me the most trouble honestly)
The roadblock is time & writing. That's the hardest part IMO, since it's the content that needs creativity / time / testing / unique effort.
Writing frameworks or batch generating images can be done fairly quickly.
As I said, if 2 or 3 people put their hands up and said "I will write dialogue and story for a renpy game free of charge" - I would probably make the art for that.![]()
![]()