Right now me and my partner from GnG Let's play are doing walkthroughs on horror maps to Gmod. They are extremely scary and full of tricky puzzles. It's amazing really. If you have gmod and are bored. check it out! Here is one of the maps we played if you want to see if it's worth the money. Full of jumpscares! And yes i am a scarity cat :D
http://www.youtube.com/watch?v=Jvw3qqbL7-Q