Most likely Call of Duty Modern Warfare 2 or BLACK OPS.Everyone likes a certain game :)
Super Mario Bros. has over 42 million copies sold.
At the moment I think it is Fortnite, but that might not be true Roblox and minecraft are pretty popular game too. They are all very popular games.
the most popular ds game is nintendogs
The most popular video game is Halo reach
HALO!
FIFA
miniclip
RPG
By vote super Mario galaxy 2is the most popular video game ever made.
The most popular video game, so far in COD: Black Ops.
Playstation 3
halo 3
Halo Babes
There really is no most popular. it depends on what games you like.