Esports are also frequently played in tournaments, where potential players and teams vie to be placed through qualification matches before entering the tournament. From there, the tournament formats can vary from single or double elimination, sometimes hybridized with group stage. Esports tournaments are almost always physical events in which occur in front of a live audience, with referees or officials to monitor for cheating. The tournament may be part of a larger gathering, such as Dreamhack, or the competition may be the entirety of the event, like the World Cyber Games or the Fortnite World Cup. Esport competitions have also become a popular feature at gaming and multi-genre conventions.