Hard to put it to only 10....
(not in any particular order)
Command & Conquer: Renegade (PC)
Final Fantasy (NES)
Frostbite (Atari)
The Legend of Zelda (NES)
Star Wars Galaxies (PC)
1942/B-52 Bomber (Arcade)
Gauntlet II (Arcade)
Bomberman (SNES)
Tekken 2 (PS1)
Twisted Metal 2 (PS1)
Honorable Mentions:
D&D Pool Of Radiance (C64)
Rest of Command & Conquer series
Street Fighter 2 (the first one)
Gran Turismo Series
Need for Speed Series
Castlevania (NES)
Ghosts'n'Goblins (arcade)
TimePilot (Arcade)
Star Wars (Arcade orig)
Turok (N64..only N64 game I ever liked)
Metal Gear Solid series (from Nes to PS2)
R.C ProAm (NES)
Ninja Gaiden 1 and 2 (SNES)
Actraiser (SNES)
Arkanoid (all versions)
Tetris (colorful one by Nintendo for NES)
Blackthorne (NES)
Dragon Warrior (NES)
I can go on still. Avid gamer since Atari days.