If I didn't come read the comments I wouldn't have guessed that I CAN'T stack the urns during the explanation, or the game becomes unplayable. But besides that it looks and feels like a really well made game. Some considerations: I fell left and right mouse buttons would be a much better control option, sometimes when walking diagonal(W+D) it is bad to press E. And sometimes I wanted to pick up an urn but just kept kicking it farther away.
Really nice presentation and good fit for the theme!