My older brother was very much into pc gaming while I was a few years behind so things get a bit foggy, however my best friend's dad at the time has multiple computers for work and we ended up playing adventure Island and commander keen a fair bit, later on my memories of games at home include stuntz, Street rod, the incredible machine, jetpack, there was one where you where a drug dealer?, Diablo, blood, doom, leisure suit Larry and so on but I guess my earliest memories would be of adventure Island and at the time I thought it was pretty fantastic and it was cool to play a game that wasn't my brothers
The first game I purchased with my own money was tomb raider and I'll be honest, it was mostly because of the cover art but looking back it was quite a technical achievement
There should be a Ted talk on this lol