Every additional item the player picks up or purchases will occupy a set amount of slots, players can redeem these slots by selling or dropping said weapons. The remaining fourteen slots are then free to house the players choice of weapons. The inventory system in Killing Floor is controlled by two factors, weight measured in blocks, and currency measured in pounds (£).Īll players start the game with a Welder, Med-Syringe, Knife, 9mm Tactical, 3 grenades, and fifteen weight slots one of which is permanently taken up by these items.