The 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.
The Microsoft Windows version of Elder Scrolls Online was released before the OS X version.