Sandbox=you can make stuff with infinite possibities
An open world is a type of video game level design concept where a player can freely roam a virtual world.[1]
The term is sometimes used interchangeably with "sandbox" and "free-roaming";[2][3] however, the terms open world and free-roaming describe the game environment itself and allude more to the absence of artificial barriers,[4] in contrast to the invisible walls and loading screens that are common in linear level designs. The term sandbox refers more to the mechanics of a game and how, as in a physical sandbox, the user is entertained by his ability to play creatively, boundless of artificial structural constraints, and with there being "no right way"[5] of playing the game.
Sandbox=loving around without a timelimit or restrictions as well
Gimme the correct definition and I will edit the topic, What is the best one? Name your favorites here and discuss them kay? Kay
What I mean by sandbox'ey =
Grand Theft Auto
Crackdown
Fable (Kinda)
Prototype
Infamous
Just Cause 2