Maybe the mode would be alright if you just had the whole world to monkey around in. I can accept being able to just get resources if that’ what you wanted, but I think just playing the game with normal constraints except the whole “Cthulu is going to eat your City” would maybe be fun too for some people.
You could trade with NPC’s, or establish infrastructure or colonies at increasingly larger distances from your main city, or perhaps simply sprawl into the countryside and increasingly convert it into pastoral or urban territory as you saw fit, changing wild land into peaceful and industrious living space for your burgeoning population.
If that’s what you wanted. If you wanted to have an environmentally conscious culture (because you felt like it/because you were playing a mod with Elves or some Traditional Tribal society, or Flower Children/Druids, etc.) you could find other ways to continue expanding and getting resources.
Maybe you could accept that you just weren’t going to get a lot of some kinds of resources with any frequency, if at all, and restrict yourself to using resources that were renewable without expanding extensively.
Which would actually work pretty well if the most threatening thing your villagers had to face was an angry boar or something, as opposed to "all consuming hordes of Goblins and possible Squidlike harbingers of destruction).