I don`t understood why you guys did not provide a web build?
You will get so much less traffic for not having a web build.
Put an Introscreen in the game, with control, what are your tasks/todo`s, small tutorial etc.
No SFX and no Music at all, that is why I quit after 30seconds. The Audiopart usually doesn`t take that long, but will be super beneficial for your rating. There are lots of free resources available everywhere, Assets here on itch.io or on pixabay.com for example. Without audio or animations the game is lacking feedback to the player, and that leads to the player not having fun.
The artwork and thumbnail was nice, but the inventory was way to small.
If you keep going your next game will be better! (Add some Audio ;) )