Space invaders and Pong of course.
That purple plane game Mane showed.
Blade Runner and Double Dragon also on Amstrad.
The first Doom without sound card, at first.
Out of this (or Another) world and Flashback, and Metroid on SNES.
When I saw a preview for Warbirds on a mag. Didn't get to play online flight sims till a few years later, but those images hypnotized me right away.
Chuck Yeager's AC for a while.
And the Wing Commanders

And Gato

forgot about that one...
System shock 2 and Final fantasy 7.