Although your backpack is not a weapon in Rules of Survival game, it has the own function. Indeed, you can go to war against other rivals after you parachute and land. And you need to have enough space to store some ammo or something that you help you restore your health such as medkits. Remember that the challenge that you are about to face is not simple to conquer! So, you are recommended to prepare for the worst situations. Along with helmets, body armors, or guns, backpacks are important and basic equipment.