Anyone into RetroGaming ?

Just wondering if we have any RetroGaming fans here ?
Any users with retro mini systems like the PlayStation Classic, with mods ?
RetroArch users, etc ?

Tell me something about your favorite RetroGaming sessions or what these games mean to you, and the memories that come with them.

Well whats your definition of retro? Is Wolfenstein 3D and Doom to old? The first memory that comes up to my mind is downloading doom at work because i had no pc at home.