Sosaria

Ultima
The most commonly used logo in the series
Genres	Role-playing video game
Developers	Origin Systems Blue Sky Productions Looking Glass Studios Electronic Arts Bioware Mythic
Publishers	Origin Systems Electronic Arts
Creators	Richard Garriott
Platforms	Apple II, Atari 8-bit, VIC-20, C64, DOS, MSX, FM Towns, Apple IIGS, NEC PC-9801, Atari ST, Mac OS, Amiga, Atari 800, NES, Master System, C128, SNES, X68000, PlayStation, Windows
First release	Ultima I: The First Age of Darkness 1981
Latest release	Ultima Forever: Quest for the Avatar 2013

Ultima is a series of open world fantasy role-playing video games from Origin Systems, Inc. Ultima was created by Richard Garriott, a.k.a. Lord British. Several games of the series are considered seminal entries in their genre. Electronic Arts currently own the brand.

The main Ultima series consists of nine installments (the seventh title is further divided into two parts) grouped into three trilogies, or "Ages": The Age of Darkness (Ultima I-III), The Age of Enlightenment (Ultima IV-VI), and The Age of Armageddon (Ultima VII-IX). The last is also sometimes referred to as "The Guardian Saga" after its chief antagonist. The first trilogy is set in a fantasy world named Sosaria, but during the cataclysmic events of The Age of Darkness, it is sundered and three quarters of it vanish. What is left becomes known as Britannia, a realm ruled by the benevolent Lord British, and is where the later games mostly take place. The protagonist in all the games is a canonically male resident of Earth who is called upon by Lord British to protect Sosaria and, later, Britannia from a number of dangers. Originally, the player character was referred to as "the Stranger", but by the end of Ultima IV he becomes universally known as the Avatar.

In Ultima I: The First Age of Darkness (1981), the Stranger is first summoned to Sosaria to defeat the evil wizard Mondain who aims to enslave it. Since Mondain possesses the Gem of Immortality, which makes him invulnerable, the Stranger locates a time machine, travels back in time to kill Mondain before he creates the Gem, and shatters the incomplete artifact.