I think we didn't convey the other main goal of the game clearly enough, sadly. There are 5 memories scattered in the forest, each of which has a path leading to it from the campfire. By collecting them and throwing them into the fire, you would increase the counter and get the second ending. That combined with the campfire burning down a bit too quickly has led to seemingly no one getting past simple wood collecting in the game.
Another problem is that the fire actually has a very high limit, but there is no indicator of that, so it's hard to understand the stage it is in at the moment, like you said. We just really didn't want to clutter the game with GUI as to not ruin the atmosphere. And sorry about the crash! We hope to fix the performance issues when we finish the web build.