I hate the way items never wear out or become damaged in most RPGs. It begets all sorts of unrealistic characters and situations, such as the tank-style figher-- those heavily armored warriors who need never bother to duck, parry or dodge because they can depend on their armor to always protect them, as it never gets damaged. I actually know something about actual combat, armor and weapons, so the unrealistically heavy and ever-durable armor and weapons in RPGs grates on my nerves.
Anyway, I was starting to work on rules for item durability when I ran across this title. Not only does this save me some work but Wear & Tear is much better than what I was coming up with. And it covers item flaws, so stuff doesn't just work fine until it breaks in this system. I play various systems-- d20, True20 (my fave), Storyteller, Fate, plus I've played Dungeon World, GURPS and Savage Worlds-- and though you'll need an assortment of dice for true randomness, Wear & Tear truly would work with any game system.