Elder Scrolls Online is a massively multiplayer online role-playing (MMORPG) video game developed by ZeniMax Online Studios and published by Bethesda Softworks. It was originally released for Microsoft Windows and OS X in April 2014. It is a part of The Elder Scrolls series, of which it is the first multiplayer installment.
As with other games in The Elder Scrolls franchise, the game is set in the continent of Tamriel and features a storyline indirectly connected with the other games. The Elder Scrolls Online had been in development for seven years before its release in 2014. It initially received mixed reviews, but these improved significantly with the re-release and rebranding as The Elder Scrolls Online: Tamriel Unlimited, with critics praising the changes.
Similar to other MMORPGs, The Elder Scrolls Online originally used a mandatory monthly subscription model, until it transitioned to a buy-to-play model with microtransactions and an optional subscription in March 2015. The game was then renamed as The Elder Scrolls Online: Tamriel Unlimited, and released for the PlayStation 4 and Xbox One consoles in June 2015. As of 2017, the game had a million monthly active players, with over 8.5 million players in total since release.