Ultima Online is one of the first true massively multiplayer RPGs, launched by Origin Systems in 1997 and run since 2014 by Broadsword under publisher Electronic Arts. It is set in Britannia, the world of the Ultima series.

There are no classes: skills improve through use, and the mix you build defines whether you are a warrior, mage, smith or merchant. Crafters make most of the gear, and players place their own houses in the world. The world has two versions — Trammel allows only consensual PvP, while Felucca lets anyone attack anyone.

It suits players curious about the genre's roots and fond of sandboxes with a player economy. The isometric graphics are very old, and there is no Russian. Full access needs a subscription; since 2018 the free Endless Journey mode offers limited play.