I enjoyed this, though as pointed out by others the acceleration on the movement and turning makes it feel quite jerky. I think just linear movement would work better.
That said it is a really good looking game and the spiders lurking in the darkness really gave it a good dungeon crawl feel - I also liked the healing on exploration mechanic, it added a lot to the mapping out of the dungeon so you don't just end up walking around randomly.
It also worked well in the browser even if it felt a bit "heavy".
But a good solid submission to the jam! Well done!