What does open world mean?
Open world
Mercenary (1985) has been cited as the first open world 3D action-adventure game.[48][49] There were also other open-world games in the 1980s, such as Back to Skool (1985),[50] Turbo Esprit (1986)[51][52] and Alternate Reality: The City (1985).[53] Wasteland, released in 1988, is also considered an open-world game.[54] The early 1990s saw open-world games such as The Terminator (1990),[55] The Adventures of Robin Hood (1991),[27] and Hunter (1991), which IGN describes as the first sandbox game to feature full 3D, third-person graphics,[56] and Ars Technica argues "has one of the strongest claims to the title of GTA forebear".[27] Sierra On-Line's 1992 adventure game King's Quest VI has an open world; almost half of the quests are optional, many have multiple solutions, and players can solve most in any order.[57] Quarantine (1994) is an example of an open-world driving game from this period,[58] while Iron Soldier (1994) is an open-world mech game.[59]