Sandbox

An open world is a type of video game level design where a player can roam freely through a virtual world and is given considerable freedom in choosing how or when to approach objectives. The term free roam is also used, as is sandbox and free-roaming. “Open world” and “free-roaming” suggest the absence of artificial barriers, in contrast to the invisible walls and loading screens that are common in linear level designs. Generally open world games still enforce many restrictions in the game environment, either because of absolute technical limitations or in-game limitations (such as locked areas) imposed by a game’s linearity.