There are a handful of great open world games that came out in the last few years;
Red Dead Redemption is a phenomenal wild west sandbox game made by rockstar.
Grand Theft Auto IV is the latest installment of the GTA series which has included some of the best open world games ever made.
Just Cause 2 is an open world game where you are free to roam a gigantic and beautiful tropical island.
The Assassin's Creed Series is known for great open world games, in particular Assassin's Creed II.
The Saint's Row series has great open world game play similar to that of GTA but with more freedom and silliness.
The Infamous Series for PS3 has you as a superhero in an open world sandbox environment.
The Fable Series features great open world RPGs.
Fallout 3 is another great open world action RPG set in a post nuclear apocalypse wasteland.
The Mass Effect series is an open universe game where you can travel to distant planets to explore.
The Elder Scrolls series has some phenomenal open world game play most recently in Oblivian and Skyrim.
Honorable Mentions: LA Noire, Bully, Yakuza, Crackdown, Red Faction Guerrilla.
The best game (most popular) is Minecraft. It is an indie sandbox with millions of players. The game cost more than $30, but it's well worth it. Versions: iOS, PC, Xbox Live Arcade
It is said to be the best (sandbox) game but its your opinion.
xbox or xbox 360
NO it was aclaimed the BEST PS3 game!
Call of duty black ops is the best xbox 360 game of all time
Minecraft :)
the first sandbox game was in 1991. it was called hunter. however grand theft auto was one of the most well known sandbox games ever invented
decent, but not as good as roblox
I say the best game would be Halo since Halo can be only played on Xbox.
Xbox Kinect is a game for the Xbox Elite and other versions you idiot!
PHUN phunland.com
no