
RuneScape is Massive Multiplayer Online Role Playing Game by jagex.. It is a browser game that has a downloadable client to play on. You spawn in with nothing and fight monsters, complete quests and exchange goods with other players and NPCs.

Runescape has been around since 2001 as RuneScape Classic. It then moved into Runescape 2 in 2012 and the current Runescape 3 in 2013.
The big thing with Old School RuneScape is that when it moved from RuneScape 2 to 3 the player base was upset with the quality and in-game changes so much so that they signed a petition to make RuneScape 2 AKA “Old School” RuneScape playable again. Jagex ended up releasing OSRS as its own game alongside RuneScape 3. Currently, Old School RuneScape has around 130,000 players while RuneScape 3 has only 45,000.
13 years after its release it has nearly 3 times as many players as the newest version of the game.