Not much different from a post-nuclear apocalypse but keep in mind that wildfire will be incontrollable without human intervention, so we are facing this again, Should we go for realism, a rought world that won’t forgive a mistake or a more player oriented world were mistakes are admitted but in a limited scale where 0 equals to “oh I am carrying too much volume” and 10 equals to “You light a fire in front of the gas station you are using as shelter”.