In DayZ, you can make a campfire by combining friction between two stones on top of each other. The heat will ignite the stone below and create an open flame.
You’ll need some sort of flat surface like a rock or metal plate to work with both pieces of flammable material – sticks, logs, dry leaves are all good options for this part. Place one piece of fuel on your prepared surface so that its facing up (so it’s not resting on any edges). Then take your second piece of fuel and place it directly above it but not touching yet- this is where we’ll add our little secret ingredient: pressure! Press down firmly with both hands until you see smoke coming from under