Well it was a long childhood, and many games were played, so more than one from me.
Now i just skimmed through this, but I don't think anyone has said any of these: TETRIS! Hogs of war, dogs of war, Deus Ex, System Shock 2 (despite the fact I was like 12 at the time) and, to my eternal shame, Super Star Wars...
And the cany reader may notice most of those games are from different time periods, but my dad had most of these games scattered around the house so I just grabbed what I could before "The Great Cleansing" where the villainous mum swept the house clean of most of the awesome junk that was stored in corners.... Don't you hate it when they do that?