Add more quests (and other things)
I think that you should firstly add more quests so that you can gain more xp and gold. The player quests available mostly end up with the player just spawning i the quest creators town and after that you simply can't find the reward block.
Next, i think that you could be able to gain xp from enemies. As said above, the player quests is just not working as the only source for xp. They could also drop items used for crafting, but i'm not going into further detail about that, since there are others who already have been working on this below.
Finally, you should definitly add more weapons. ALOT more weapons. maybe not 100 in a week right now, but at least a couple more swords/guns. Also you could add different weapon types, like bows or spears. You could also add armor, which would protect aginst enemy attacks and lower the damage that they do.
This game has potential and i hope to see more of it in the future :D
Good luck!
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Rayamon commented
Just now discovered that you actually get xp when you kill enemies XD anyways it could be a bit more, since i didn't notice until now... so yeah.