Arduin for sure!
Nephilim, Spacemaster, Paranoia & of course Call of Cthulhu

I've always felt the same way about his influence on D&D, which is why I was surprised CAS isn't mentioned in AD&D's Appendix N. Apparently Gygax didn't like CAS at all.

Dave Hargrave on the other hand LOVED CAS, and called Zothique "The predecessor to Arduin."

I had no idea there was a Silver John movie. I'll have to track this one down!

Running "Still Waters" from the Great Old Ones book as the culmination of our current campaign arc.

Spacemaster was one of the greats. Some of the published adventures for it were top notch.

This was once one of my favorite board games. Hard to find these days!