Cthulhu Dark
Cthulhu Dark is a tabletop roleplaying game of cosmic horror¸ in the style of H.P. Lovecraft.
It's about the things we fear¸ amplified until they are unbearable. It's about stories that genuinely creep you out¸ not well-worn tropes and creatures you've seen hundreds of times before.
And it's about bleak horror¸ in which humans are powerless when confronted by hyperintelligent alien horrors. You can't beat them. You can't fight them. You can only watch¸ run¸ hide and fear.
If you love Cthulhu games already¸ then this is Lovecraftian horror at its most intense. If you're new to them¸ then Cthulhu Dark is a great place to start. You'll enter a world of stories that are both terrifying and terribly human.
The rules are incredibly short: they're tightly focussed on horror and they drive the game.