The black box is frequently used as a [[meta room]] where the players can go during the runtime of a longer larp. In the meta room the players may enrich the stories of the characters beyond the time and space of the "main" larp, and to give players a break and an opportunity to think through their larping without having to go off-game. An early use of a black box for a meta room was in the larp [[En stilla middag med familjen]], hence the common misunderstanding that a black box and a meta room is the same. A black box can also be used for other [[meta technique]]s than the meta room during the runtime of a longer larp.
Black boxes is also used as the entire venue for a larp. This is most common for shorter larps, and some refer to the short [[Black box larps]] as a seperate separate genre of larps.
There are also examples of longer larps with many players run in large black boxes, such as [[Mellan himmel och hav]], [[Delirium]] and [[Kapo]]. Kapo also has a small black box for meta room usage inside the large black box that made up the playing area.
== History ==
The black box has long history in the theatre world and was (probably) introduced first as technique in Nordic larp at [[Swedish]], [[En stilla middag med familjen]] in [[2007]], where it was used as a meta room. Short black box larps has predominantly been played at festivals such as [[Prolog]] and [[Grenselandet]], probably due to the accesibility accessibility of blackboxes at these festival venues. In [[2012]] the festival [[Blackbox CPH]] was started, the first event focusing solely on short black box larps.
There are also organizer networks that run black box larps on more regular basis, such as [[Blackbox Malmø]] and [[Blackbox Deichman]] in Oslo.