10 Video Game Heroes Who Accidentally Made Their Own Villains

Fallout: New Vegas is pretty open to the player coming up with their own backstory. Most of your characters' past is left ambiguous on purpose, so you can roleplay them however you like.

Except for the Lonesome Road DLC, where it's deliberately used to show how Courier Six created the side quest's villain, Ulysses.

Throughout Lonesome Road, your character learns of how their one mistake completely ruined Ulysses' life and led him down a path of revenge.

According to him, his home, the Divide, was completely destroyed after Courier Six delivered a package that activated the nukes hidden in the area, and now his goal is to destroy your own home by dropping another nuke on the NCR.

Of course, your character would have no idea what the package was for (and why would they, considering a good mail person doesn't look inside their packages), but your mistake is ultimately what pushes Ulysses over the edge.

You might want to deny Ulysses' claim or at least tell him nuking yet another settlement won't solve anything, but you have to admit anyone would be as cranky if their community got bombed to oblivion.

Except they wouldn't talk about bears and bulls quite as much...