85-88 is unrivaled. I am willing to fudge the 3 year span a bit because games were still released at significantly times in different countries, though you could sheer off either end and still have an extremely impressive list.

  Super Mario Bros 3
  Zelda II
  Mega Man
  John Madden Football
  Battle Chess
  Tetris
  Contra
  Double Dragon
  Street Fighter
  Castlevania
  Metal Gear
  Metroid
  Mike Tyson's Punch Out
  Final Fantasy
  The Legend of Zelda
  Dragon Quest
  Super Mario Bros
  Adventure Island
  Paper Boy
  Gauntlet

Quake II was 1997 and Quake 3 1999 (!). Also, you mention Counterstrike, but the original Half-life and Unreal were pretty revolutionary too.

To this day my favorite game is still Total Annihilation (1997).