10 Video Game Achievements That RUIN The Game

10. Manifest Destiny - Red Dead Redemption

In a typical Rockstar game, getting gung-ho with your gun is an entirely guilt-free experience. You might gain a wanted level or lose honor, but otherwise, your little murder spree will not disrupt the status quo, and you'll be able to continue playing as though nothing had happened.

But not in Red Dead Redemption.

Here, what you shoot and how many times you shoot it can matter greatly, as evidenced by the achievement "Manifest Destiny."

The achievement requires you to kill every single bison on the map. It sounds simple, but there's a catch: bison are the only creatures in the game that do not respawn, meaning that when you get rid of them all, they're gone. Forever.

Yes, in a bitter reference to its namesake, Manifest Destiny requires you to take from the beautiful landscape of the Old West and leave it a little more empty for it. Once the achievement pops up on your screen, you'll know that you'll never be able to encounter another wild drove of bison, and the plains they used to roam will forever be turned into silent, bleak patches of grass and dirt.

Great, as if 80% of the map wasn't a desolate wasteland already.