Dark Conspiracy (1991)

The game is set in the early 21st century after the "Greater Depression" has destroyed the global economy. Focusing on the United States, the game describes a country undergoing slow collapse. Most of the largest cities have continued to expand and formed massive metroplexes, in some cases covering entire states' worth of land. Outside of the metroplexes the majority of the country has become known as "Outlaw" where there is virtually no federal or state protection and the road network is barely maintained between the glittering lights of the Metroplexes. Scattered throughout the Outlaw and even in the darker and more forbidding areas of the Metroplexes, zones known as "Demonground" have begun to appear. Out of these areas spread monsters, everything from legendary creatures such as Vampires and Werewolves, to the science fiction nightmares of aliens and cyborgs. The PCs typically assume the roles of people who have stumbled across this "Dark Invasion" and taken up arms against it.

The first edition uses a d10 to resolve skill checks.

From the back of the book:

Shapes that rip and tear. Shadows that live in corners. Windows in space and time that lead to realms of madness and decay. A dark, lurking horror that feeds off the echoing aguish of a billion tortured souls. This is the center of a twisted, sinister conspiracy which threatens the very existence of all humankind. Set in the near future, the world of Dark Conspiracy is dramatically altered from today and is fraught with peril and challenges. The Metroplexes, where most of the world’s population lives, are a blend lawless gang turf and corporate fortresses ruled by men and women powerful enough to be above the law. The countryside is sparsely inhabited, its natives suspicious and violent. And increasing areas of countryside are turning into Demonground, from which few humans return.

When an ancient, brooding evil is released from its dimensional prison, humankind’s worse nightmares come to life. What is the link between this sinister horror and the mysterious holes in the ozone layer, the rise of empathically aware humans, and the alien visitors from another star system?

For the few men and women perceptive enough to recognize the danger and resourceful enough to fight it, the battle to recapture humankind’s birthright will be long and costly.

Can you push back the dark?