Founded in 2005, 2K develops and sells video games, and also offers interactive entertainment for personal computers, smartphones, and tablets through its three divisions: 2K Games, 2K Sports, and 2K Play. 2K publishes popular gaming genres, including action, role-playing, sports... Read More, casual, and entertainment. One of 2K's critically acclaimed video games is Borderlands 2 for Xbox 360, PC, and PlayStation. The game lets the user play as a "vault hunter" who faces off against a new world of creatures. Players take on the challenge by making new friends, arming them with weapons, and fighting alongside them in a four-player game. 2K also carries engaging sports video games such as the NBA 2K13, which -- at more than 5 million copies sold -- is the biggest NBA video-game franchise in the world.