Crawle is a sandbox dungeon-crawler with a focus on realistic survival featuring mechanics such as sanity, hunger, thirst, energy and diseases.
Fire is a new mechanic that is mainly useful for obviously cooking food and secondly it outputs Ash which can be used as a fertiliser.
You can view a video of it in action here: Youtube.com
Oh well, trees will have a "natural" predator now
Man invent fire, fire burn down house, Man crushed in house fire!