Third parties continued to attempt or clone concepts or ideas from popular and successful games. Games like "Tetris" and "Breakout" inspired many games that used similar core concepts but expanded beyond that; the "Breakout"-inspired "Arkanoid" itself inspired many other clones that built upon its unique additions to "Breakout". Gameplay elements of "Street Fighter II" and "Mortal Kombat" became common gameplay elements in the fighting game genre, A large number of games that tried to capitalize on the success of the 3D adventure game "Myst" were grouped as "Myst clones". Some video game genres are founded by archetypal games of which all subsequent similar games are considered derivatives; notably, early first-person shooters were often called ""Doom" clones", while the success of the open-world formula in "Grand Theft Auto" led to the genre of GTA clones. The genre of endless runners is based on the success and simplicity of the game "Canabalt". Such cloning can also cause a relatively-sudden emergence of a new genre as developers attempt to capitalize on the interest. The battle royale genre grew rapidly after the success of "PlayerUnknown's Battlegrounds" and "Fortnite Battle Royale" across 2017 and 2018, while "Dota Auto Chess" released in January 2019 spawned several commercial games in the auto battler genre by mid-2019.