Introduction There's no such things as monsters. No monsters of magical origin, anyway. Ghosts, demons, zombies, these are all fantasies created by primitive minds, and only fools believe in that kind of nonsense anymore. But magic isn't the only source of monsters. Humans can be monsters to each other, from Jeffrey Dahmer to Adolf Hitler. We can create entirely new monsters with the normally benevolent sciences of robotics and genetic engineering. There are animals, plants, and diseases known and unknown inimical to humanity. And space is vast; somewhere out there are people and animals who have not yet discovered us, and their survival will be more important than our survival to them. The universe stands against us, often not out of intentional malevolence, but simply because it does not care if we live or die. Malevolence is a roleplaying game set in a world where some of these monsters are real. You might be innocent civilians threatened by these hazards, or professional or independent agents attempting to investigate and contain them, or you may be responsible for them in the first place. You'll investigate strange occurrences and attempt to survive them. You're probably going to die...