I like the balance between exploring, feeding the fire, and avoiding the monsters. I appreciate that there seems to be some randomization in the firewood and monster locations. The monsters made me kind of jump every time!
I would recommend adding music and maybe a *bit* (just a bit) more sound.
Also, there is very limited forward visibility (regardless of the status of the fire), because the camera only moves when the player is very close to the edge of the screen. This makes it a bit too easy for monsters to ambush the player; I would recommend narrowing that range a bit so the camera advances more.
Lastly, I came across a strange bug in one playthrough. After a monster nabbed me, I was separated from the wagon, with the player and the wagon traveling to opposite sides of the screen. I could not longer move normally, but the game wouldn't trigger the game over condition.