Minecraft in his performances. A simulation of the game was featured in Lady Gaga's "G.U.Y." music video. The game is also referenced heavily in "Informative Murder Porn", the second episode of the seventeenth season of the animated television series "South Park". "Luca$", the seventeenth episode of the 25th season of the animated sitcom "The Simpsons" was inspired by "Minecraft"; Persson responded by tweeting "I'm not sure how I feel about it." After the release of "Minecraft", some video games were released with various similarities with "Minecraft", and some were called "clones" of the game. Examples include "Ace of Spades", "CastleMiner", "CraftWorld",
Minecraft official modding application programming interface (API). Texture packs that alter the game's textures and HUD are also available, as created by the community. In July 2013, texture packs were replaced with "resource packs", which have the same role as texture packs, but allow custom audio as well. Players are also create their own maps, which often contain specific rules, challenges, puzzles and quests, and share them for others to play. In August 2012, Mojang added adventure mode for custom maps and in October 2012, Mojang added command blocks, which were created specially for custom maps. In February 2016, Mojang added