Dying Lightis a game with a lot of loot and a lot of grinding. If you're looking for an easy way around its loot grind to maximise your time spent killing zombies for fun and fun alone, fear not: players have uncovered a handy exploit to do just that.
Uncovered by a number of different players who posted their findings on Reddit (see here, for one small example), Dying Light's relevant cheat allows you to duplicate any weapon you're holding an infinite number of times. This in turn means you can sell the results for infinite piles of cash. The economy-breaking exploit works exactly the same way it did in its immediate predecessor Dead Island. I really wasn't kidding when I said the games have a lot in common!
Anyways, here's a step-by-step guide for how to get it working:
Step 1: Acquire the Melee "Throw" skill, available in the "Power" skills menu. "Throw" comes after "Stun" in its specific branch of the Power skill tree, so you'll need to put a few levels into the discipline before the cheat can work. Doing so is just a matter of killing zombies.
Step 2: Choose a weapon, presumably a valuable one. Equip it.
Step 3: Throw the weapon using the Throw skill.
Step 4: Immediately after throwing the weapon (i.e., before it even hits the ground), open up your inventory, select the weapon you just threw, and "drop" it from your inventory.
Step 5: Sell the weapon(s).
Step 6: Repeat this process as many times as necessary to get all the money you need. Can also be performed before step five.
Step 7: Once you have a giant enough pile of money, go like this:
The video up top, which I found thanks to this Gameranx post, shows how to perform the exploit in action if you're still confused.
Also, one last thing: keep in mind that you don't have to use this exploit if you don't want to. I probably won't because I think that levelling your character's abilities and equipment is the best part of the Dead Island games, which both became exceedingly dull once I maxed everything out. But who am I to tell you what the best way to kill zombies is.