http://oldschoolrunescape.wikia.com/wiki/Old_School_RuneScape_Wiki
RuneScape 2 is a medieval-fantasy MMORPG (Massively Multiplayer Online Role-Playing Game) that allows each player to create their own avatar and navigate the huge world of Gielinor. In this world, players can choose to train their combat (including options of melee, ranged/archery, and magic), explore dangerous and beautiful environments, set out on adventures and complete quests, train a whole host of resource skills (such as fishing, woodcutting, mining, smithing, fletching, farming, hunting, herblore, runecrafting, and more), socialize with other players, fight intimidating bosses, kill other players, trade, and so much more. It’s really up to the player what they do with their time. But, with the final goal of the game arguably being to max out all stats/skills to level 99 and complete all of the quests, players are going to need a lot of time on their hands if they want to master the game’s exponential leveling system.