Shortly after the game's launch, one player discovered an easy way to earn money early in the game. They could kill cows, sell the hides, meditate to replenish the herd and repeat as desired. When CD Projekt Red found out about this, they decided to stop players from exploiting the method with the "Bovine Defense Force Initiative" patch. If Geralt kills too many cows too quickly, a powerful monster would then appear which can easily kill low-level players.