In ultima online, a revenge story can start from a simple argument between two players. One player might insult the other. The insulted player then decides to take revenge. He could spread false rumors about the other player in the game world, causing other players to avoid the one who insulted him. And he might also try to sabotage the other player's quests by secretly helping the monsters they are fighting against.
Bless Me Ultima is classified as fiction. The author crafted a narrative with imaginative elements and plotlines that aren't based on real, factual occurrences.