Started out with 3R, Axis & Allies, Hitler's War, King Maker, Imperium Romanum, Air Force & Dauntless, D&D and Dragon Quest, Traveller, then SL and later ASL, Shogun (M&B), LOADS of Dawn Patrol, Guns of August, Gladiator, Battlewagon, Wooden Ships & Iron Men, Pacific War, Battletech, Behind Enemy Lines (WWII RPG)...and there are a bunch I can't remember the names of.
I borrowed The Longest Day in '90 and set it up intending to play solo, but found there were missing counters so never got going.
Basically we played whatever anyone of our group bought or borrowed.
Game shops (actually usually comic shops) used to have a lot of interesting used games on the shelves in the late '80s early '90s, way more than I could afford or had friends interested in playing them.
Some I bought to play solo anyway.
That is where I got my first bundle of ASL stuff.
A lot of good times were had over the years..