10 NPCs That Broke Video Games
6. Invincible Monsters - The Witcher 3
The Witcher 3 provides the player with plenty of opportunities to feel like a monster-slaying badass. However, you shouldn't feel too cocky filling in Geralt's shoes, as all it takes is one simple glitch to let all the monsters in the game wipe the floor with you.
The bug in question is often referred to as the "invincible monsters" glitch. It's a result of an integer issue that occurs when the player drops an enemy's health bar below zero and causes it to enter negative numbers.
When the glitch is triggered, an enemy will become unkillable and potentially prevent you from progressing the story. What's worse is that the glitch is infectious, so one random monster you make invincible can spread its newfound "powers" to other creatures in the game.
The glitch has been around since the original release of The Witcher 3 back in 2015, but even nowadays, you can find someone saying it happened to them. The only permanent way to fix it is to reinstall the whole game, which is why, if you want to spare yourself an afternoon of pointless downloads, you ought to pay attention to your drowners' health bars.