free roam

Short definition from Wiktionary

Noun

1. 1
   A game mode where players can explore the game environment at will, rather than following a fixed story line.
2. 2
   The right to move without restrictions throughout a specific locale.
3. 3
   A type of wireless service plan where there is no cost difference between on and off network usage.
4. 4
   Alternative form of free roam.

Verb

1. 1
   To play in free roam mode.
2. 2
   To move about or explore at will within a specified area.
3. 3
   To allow animals the right to move freely within a large area.
4. 4
   Alternative form of free roam.