"Think what it's like to be a killer. Think how exciting it is, in theory, to kill a person in direct confrontation. If he dies, you cannot. To kill him is to gain life-credit. The more people you kill, the more credit you store up. It explains any number of massacres, wars, executions. . . .
"In theory, violence is a form of rebirth. The dier passively succumbs. The killer lives on. What a marvelous equation. As a marauding band amasses dead bodies, it gathers strength. Strength accumulates like a favor from the gods."
- 'White Noise' by Don DeLillo
This sounds a lot like D&D to me.