What video game did you play most as a child?

[Stiff Clamp]

Descent. More playtime than Red Alert or Duke Nukem

 

[spoopyboy]

Counter strike source jailbreak

 

[montsa007]

Contra & Mario,
We had the NES cassette based video games back then

 

[JWade]

Tetris on the original gameboy and the original Metroid on the NES

 

[JWade]

Ultima IV for PC

 

[Fallen Kell]

A lot depends on age, but probably something like this:
NES:
Legend of Zelda
Contra
Final Fantasy

SNES:
Final Fantasy II (usa)
Chrono Trigger
Final Fantasy III (usa)

PC:
Mechwarrior
Mechwarrior 2 (and variants like Ghost Bears, and Mercenaries)
Civilization 2
Doom/Doom 2 (probably several hundred hours in dial-up co-op and 1v1 back when you dialed the other person's computer before online gameservers existed)

 

[Percyy]

Super Mario was my favorite game! Never again in my life will I be able to feel that delight from the game ...

 

[Anasabdullah]

Crash Bandicoot and Mortal Combat,