Thank you for playing our game and for such a nice and constructive comment!
I agree about the balance, it's something that's going to take continued refinement. And thank you for letting us know about the problem with restarting.
I'm glad you enjoyed the theme of the game. That contrast between our current lives and the lives of hunter-gatherers is something that really comes through in the gameplay and I also really like that about the game.
For future plans for the game we're contemplating additional ages after the hunter-gathers such as early agriculture and then city-states with the same worker placement and research mechanics plus some new ones. Trying to design those while being true to the reality that many of those "advancements" weren't much of an advancement at all in terms human wellbeing (in fact they were a detriment) is definitely something I want to accomplish.
Another option for expanding the game would be simply a bigger version of the hunter-gathers tree. One that leaves them there, satisfied as hunter-gatherers and avoiding the western centric view that sees them as just a primitive stage in human advanced. A view I think we'd both agree is totally incorrect.
A vertical format could be a bit of a challenge but I think I agree that this would feel great on mobile!
Anyway, thanks for your thoughtful comment!