Gamescom is a trade fair for video games held annually at the Koelnmesse in Cologne, North Rhine-Westphalia, Germany. Gamescom is the world's largest gaming event, with 370,000 visitors and 1037 exhibitors from 56 countries attending the event in 2018. The event is used by many video game developers to exhibit upcoming games and game-related hardware. The “gamescom - Opening Night Live” (ONL) show takes place every year on the evening before the opening. The show presents the latest trailers and announcements from the international games industry and is hosted by Geoff Keighley.