Old School RuneScape (OSRS) is a massively multiplayer online role-playing game (MMORPG) developed and published by Jagex. The game was first released in February 2013 in response to the declining playerbase and negative update reception of the original and then-current version of RuneScape. OSRS was originally an exact copy of RuneScape as it was in August 2007, but has since received engine improvements, new content, and quality of life patches. (wikipedia.org)