What is League Of Legends?

League Of Legends is a fast-paced, multi-player, online strategic/tactical game, with tens of millions playing it daily. Each player takes on the role of a summoner who controls each champion. Each game comprises two teams of five players, with each team battling the other to destroy their nexus. The League Of Legends domain is particularly rich, with a wide range of characters possessing very different capabilities, many classess of weaponry, only partial situation awareness, team tactics, and frequent unexpected changes in the tactical situation. Although the tactics are goal-directed, there is a large reactive component and a good player must be able to respond quickly to significant changes, based only on partial information about the situation.

Reference: Data and Decision Sciences in Action