I really like the setting and idea of Ghost Lines, a minigame by john Harper. Except for the fact that it runs on the Apocalypse World engine. I really hate Apocalypse World. So I took .INDD files that Mr. Harper provided and hacked a new system for the game, based off of Cthulhu Dark by Graham Walmsley.
An afternoon of hacking gave me Ghost Lines Dark, largely because Messers Harper and Walmsley had already done all the hard work.