Fun game, but my main issue is that there isn't really much of a goal after reaching the Max Tier. Once I got there, I didn't have much left to do, so I spent some time looking for bugs and came up with a "few" suggestions.
Bugs:
The hovering arrow and talk bubble appear underneath houses when villagers are outside.
You can hover over villagers who are inside a house even when you aren't viewing the house interior.
Favor sometimes displays floating-point errors (for example, 0.900001 instead of 0.9).
A villager can be in the talking state when nobody is nearby. (Although another villager is walking toward them, they seem far too far away for a conversation to have started.)
A villager's status can say "Staying Indoors" even when they are outside.
You can feed villagers while they're sleeping.
Houses stopped functioning after reaching Max Tier. (Possibly unrelated to the Tier.)
The Faith counter stopped updating after reaching Max Tier.
The rain effect becomes buggy when moving around very quickly.
Suggestions:
1. Add a basic tutorial.
2. Let players click a villager to select them. The camera could follow that villager, their information could appear in a side panel, and interaction buttons could be moved there instead of floating around the villager. Clicking outside the panel (or pressing an X button) would deselect them. (And also make it so the side panel does not get closed when clicking a interaction button.)
3. Allow the player to name themself.
4. Add a day counter and below would be the hour counter.
5. Make the current Faith Tier visible.
6. Add more environmental details such as trees, rocks, wells, etc. Also lower the wind loudness slightly.
7. Improve the grass visuals. (They just repeat without any variation currently.)
8. Try experimenting with a more cursive/fancy font.
9. Connect houses with pathways and add village structures such as wells or churches (churches that unlock at higher tiers).
10. Allow clicking anywhere on a house to open it. To close it, players could click elsewhere (elsewhere as in away from the house interior.), or move far enough away for it to close automatically