The Witcher 3 is out, and that means millions of players enjoying the game and also a fair few trying to find ways to screw with the game world to make their lives easier.
And they've managed to dig up a pretty tasty exploit - which is a way of taking advantage of the way a game operates to increase your chances of success. In this case, it seems killing and respawning cows is a great way to make a lot of coin, so long as you don't mind sitting around in a field for hours.
The exploit goes thusly - find a field with cows in it, murder them all, meditate for a few hours until they respawn then murder them all again. You'll soon have a field full of murdered cow corpses, and the hides are worth 27 Crowns each, that's the in-game currency. Find a shop, trade em in and repeat until your brain can't do it anymore.
Here's a video detailing a specific field in the opening White Orchard area which is good for killing.
Why would you want to do such a thing? Well firstly setting cows on fire is fun (obviously) but the main reason is for cash. Money is surprisingly scarce in the Witcher, at least in the opening hours, which is quite different to most RPGs where you can pretty much always buy whatever you like.
Alchemy ingredients in particular are quite expensive to buy, and they make a big difference to not only how you play the game but also how much fun you'll get out of combat. And money also means access to better armour, weapons and the ability to pay a strumpet if you are so inclined...
There's no suggestion that developers CD Project RED will be taking this exploit out of the game and why would they really - if people want to sit in a field for ages and make some cash out of it then we say more power to them. We're just going to play the game instead.
The Witcher 3 Wild Hunt is out now on PS4, Xbox One and PC.