Songbirds 3e
Songbirds 3e is a roleplaying game about undeath, supernatural powers, and the blue dreams of the moon. In the game, you create a strange survivor of the world who was chosen (or cursed) by Death. Spirits aren't able to pass on to the afterlife and grow monstrous with each passing day. You know the songs to send them on. You have the abilities that help you find them. You are the canary in the coal mine.
This is the third edition of the legendary game that started as a hack of Into the Odd and has grown into its own thing. It's everything that I want in a dungeon crawler and what I use to run my home games with. It has several, smaller magic systems, some open-ended potions and psychic powers, body-modifications for when a limb is inevitably cut off, and all the little quirks of eldritch fantasy that I enjoy. It's very much a passion project.