What video game has influenced your love of video games the most?

Diablo is probably the game that has most shaped how I play games today. I was never big on computer games other than like Doom until I played Diablo. My first multiplayer experiences were Diablo on a LAN, then on a 56k modem playing on battle.net. Diablo 2 brought on a completely new game that made things even more addictive.

I played console games most of my childhood, namely Nintendo 64 and Playstation 1.

Then around 4th or 5th grade, I found Runescape. And I was completely addicted 'till towards mid middle school. Right about that time, I realized
I was a loser with no friends, so I quit the game and got my life in order. I also realized how bad the game was after comparing it to other RPG's
and after playing console games again.