Hello I tried your game and I gotta say it's a really interesting project. There were somethings that didn't work like the save system, world generation and whatever adjacent tiles are supposed to do. These of course are systems that are difficult to build so its understandably if not all works in the prototype. But more pressing I think is the scarcity of resources and the difficulty to get them. Since it is so hard to get basic gear I think most players might be put off by it.
I used a bug that allowed me to save and load to get back the resources I just took. It allowed me to craft the backpack. My idea was to try to get the extra slots so I could carry the items to craft an axe. But of course my progress got halted when I tried to save and load with the backpack and it disappeared. Whenever I dropped items by right clicking and pressing the drop option it dropped every item in the stack as one item. Making me loose all except for one. At first I was a little confused on the controls and didn't really like the movement system. But I got used to it eventually. However you might want to consider making it feel good and responsive.
You have a lot of interesting biomes that might be fun to explore. But again the generation of resources are far too scarce to be fun. I think personally that you should do some kind of harvesting mechanic where everytime you pick something up it doesn't need to be just the one but might pick up mutliple.
Starting out with only two slots forcing you to make a backpack to craft anything else is kinda limiting. Tools should be the first thing you get like in any survival game.
The UI was hard to find until I realised that the keybinds where in the pause menu. I think you should have them also be accessible through buttons in on the screen like in project zomboid. It also felt like project zomboid was the kind of UI you were trying to make. But the windows were static and in awkward places especially the crafting window. Maybe you could make them draggable like in project zomboid.
And as a side note. Forgive me if I'm wrong but I get the feeling that a lot of AI was used both for the game and this page. Not that there is anything wrong with that but you should clean it up to look more neat and human.
Lastly I naturally found many bugs, some minor and some game breaking. But I honestly think this is a really cool and interesting project. It makes me think a lot of games like project zomboid and ark despite those games being lightyears away, this defininitely has potential and if anything you should absolutely continue developing it.