Old, old school AD&D 2E, One of my current campaigns has been running for over 20 years. I started with the pamphlets & went to 1E then 2E, and 5E.
Currently running: D&D5E, Trail of Cthulhu, Cthulhu Confidential Gumshoe One2One, Night's Black Agents
Audio: Roll 20 chat & Discord
Video: As Appropriate (Gumshoe)