Suggestions I have in mind:
1. Maybe add a few animals, because immersion. Maybe deer in the forest, or rabbits/birds.
2. A way to design/customise your shop. Would love to upgrade, or add to it.
3. And yeah, a difficulty system would do nicely, and maybe you can make it customizable in a few ways. Like adding extra funky challenges for extra profit. Like no sprinting : )
4. Other shops that you have to compete with, and a rep system. Sometimes you'll lose customers depending on your rep.
5. Mining right now, the way I see it being made, feels a bit OP. This is how I feel like it might come out: "I can either buy the ore, and spend my money. ORRR, I can go out and mine/smelt it for no cost while I keep my shop closed".
6. I like your repair idea, maybe your hammer or Anvil gets worn down after a long time?
7. Or maybe you can repair people's weapons for them, maybe they bring in a Great Sword and you use one bar to repair it on the anvil.
8. I like the Delivery/shop idea, where you have to go out and buy the items instead of using your fancy Wall-Pad to get your stuff, Yay, walking.
9. Drinking chocolate milk currently, maybe you could work on the house, like make it so we don't phase through the back, and make it so we can actually do something with it? (the house on the hill)
10. And finally, more monsters, and make the people actually fight them in the forest. Make it so you can actually get attacked if you wander out there.
BONUS SUGGESTION~~~~
11. The last suggestion brought this to my head, and I needed to say it.~~~~
The mining area, OR areas can be put outside of town, kinda foggy but not as much as the forest is now, and could sometimes have a "monster" there, and it will attack you if you go there. You could hire a "guard" to kill/guard you so you can go mining.
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Thanks Dais for making this game, and I am really loving it. Can't wait for the update, but i'd rather have a polished update than a half-fasted one : )