Flashback probably affected me a lot. I once managed to finish it on hard level without continues or passwords. That's when I thought "Well, I think that's enough"
. That intro sequence, the cut-scenes, the fluid animation, great graphics, and all blunded with incredible gameplay... I couldn't believe what my eyes were seeing.
Of course, SWOS. There's no other game I have played more than SWOS. Back in the days, I would fire up this game EVERY SINGLE DAY.
And Elite... but this one was on MSX, as Metal Gear on MSX affected me a lot too. Metal Gear was something I would never expect on a video-game at that time. I am supposed to NOT kill the enemies, but sneak around? What the hell?. It was really an absorbing experience for me.