This was nice, I liked the puzzle solving elements and the stories told by each grave!
A few things could be improved though, like giving players an extremely basic one-sentence tutorial at the start e.g. "click your inventory and select an item to equip it." and "click an equipped item next to the inventory button, then click an object to interact with it using that item".
I also got confused for a long time at the very right-end of the map - I spam clicked it with every item I equipped thus far because I thought I was supposed to solve a puzzle in order to cross it.