Dinosaur King (known in Japan as Kodaiouja Kyouryouking, which loosely translates to "Ancient King Dinosaur King") is a collectible card-based turn-based strategy game developed and published by Sega for arcades (using their Dreamcast-based Sega System SP hardware) on March 18, 2005.
A spin-off of Mushiking: The King of Beetles, Dinosaur King has players battling in a rock-paper-scissors fashion with dinosaurs. Using the same machine setup as Mushiking, players can optionally scan a special barcoded card to change their dinosaur (with Dinosaur Cards) and each of their three attacks (with Move Cards). Players earn a random card at the start of each play, with cards varying in rarity, power, and compatibility (as certain moves are more compatible with certain dinosaurs).
The Japanese version of the game received numerous updates until the game's discontinuation (on July 30, 2010), adding new Dinosaur Cards, new Move Cards, and new game modes (including a 2-on-2 tag-team mode).
The game received two home console spin-offs (one for the Advanced Pico Beena and one for the Nintendo DS, the latter of which was released worldwide), a physical collectible card game (the Dinosaur King Trading Card Game). multiple manga series (from 2006-2009), and an anime series (from 2007-2008). Unlike the Mushiking anime, the Dinosaur King anime was translated for an English release.