Concept: A modern horror RPG setting where player characters investigate strange mysteries born out of ancient myth, fringe science and infernal influence while resisting the lure of the abyss they look into; with monsters lurking at the edges and in the shadows, will they stand for humanity or fall to the lure of power and sacrifice their minds, bodies and souls to become what they fight?
Influences: 28 Days Later, 30 Days of Night, Angel Heart, Dark City, Delta Green, Dog Soldiers, Event Horizon, Fallen, Fringe, Hellraiser, Millennium, Quatermass, Phantasm, Predator, Prince of Darkness, Resident Evil, Supernatural, Terminator, The Invaders, The X-Files, The Serpent and the Rainbow, Ultraviolet, Unknown Armies, Vampire$, Warlock.
Mechanics: Simple, fast-resolution. Combat is dangerous, if you're unscathed it's a victory. Monsters are scary and superhuman monsters especially so; the temptations to become a monster yourself need to be present and provide a logical Faustian deal for players to consider.