Some ideas, not only related to the inventory. Some of them may have already been mentioned earlier. Map of the game The addition of a few free-standing buildings in the wilds of both civilian and military, that can serve as a temporary shelter for the players (very small chance to spawn zombies and loot). such as air tower. If possible, the addition of underground facilities, such as bunkers and tunnels. Subject to pop around the corner zombies and total darkness. Zombie Adding more types of zombies with slightly modified characteristics, such as zombies slower but more durable and stronger; zombies that occasionally howl focusing the attention of more zombies; zombies focusing more on grabbing or knocking down than hitting. Differences between the types might be noticeable only by observing their way of moving or by little details in their appearance. Just to add a little bit of work for the spotters and snipers. Factors affecting the player character The frequency time of being forced to eat and drink could be extended, but instead to satisfy hunger you need to consume more food or water. Water derived from natural sources should have the chance to induce diseases or infections you can minimize the risk of it by boiling water as an option by a campfire. Equipment No more empty bottles of whiskey! Adding to the game the ability to drink alcohol, smoke cigarettes, and other crap such as sweets – objects with minimal or no impact on gameplay mechanics. Why are so many bandits in the Day-Z? No alcohol. The possibility of finding large empty plastic bottles in order to collect and store large quantities of water (e.g. 5l bottle that lasts for 10 uses and take less inventory space than 10 drink cans.) As someone previously mentioned, all electrical equipment should operate on batteries, with the ability to recharge more sophisticated ones with e.g. noisy power generators working on fuel. The issue of the availability of weapons and ammunition already been addressed many times, I support the concept of an easily accessible weapons and limited ammo, especially the well-preserved, or to less popular weapons. Weather Add Fog ... And I need to take something to relieve stress ; / Zombie should just not respond to sounds in the rain or storm.