Dota 2 --http://www.dota2.com
Dota is a competitive game of action and strategy, played both professionally and casually by millions of passionate fans worldwide. Available on Steam.
League of Legends | Game Info --http://gameinfo.eune.leagueoflegends.com/en/game-info/
League of Legends is a fast-paced, competitive online game that blends the speed and intensity of an RTS with RPG elements. Two teams of powerful champions, each with a unique design and playstyle, battle head-to-head across multiple battlefields and game modes. With an ever-expanding roster of champions, frequent updates and a thriving tournament scene, League of Legends offers endless replayability for players of every skill level.
Minecraft is a game about placing blocks and going on adventures. Explore randomly generated worlds and build amazing things from the simplest of homes to the grandest of castles. Play in Creative Mode with unlimited resources or mine deep in Survival Mode, crafting weapons and armor to fend off dangerous mobs. Do all this alone or with friends.
World of Warcraft --worldofwarcraft.com
Join thousands of mighty heroes in an online world of magic and limitless adventure. World of Warcraft is a role-playing game from Blizzard Entertainment for the PC and Mac.