Editing Ultima (series) (section)

===Spin-offs and other games===
''[[Akalabeth: World of Doom]]'' was released in [[1979 in video gaming|1979]], and is sometimes considered a precursor to the ''Ultima'' series.

[[Sierra On-Line]] also produced ''[[Ultima: Escape from Mt. Drash]]'' in [[1983 in video gaming|1983]]. The [[maze game]] has nothing in common with the others,<ref name="maher20130516">{{cite web | url=http://www.filfre.net/2013/05/the-legend-of-escape-from-mt-drash/ | title=The Legend of Escape from Mt. Drash | work=The Digital Antiquarian | date=2013-05-16 | access-date=10 July 2014 | author=Maher, Jimmy}}</ref> but is highly sought after by collectors due to extreme rarity.

The ''Worlds of Ultima'' series is a [[Spin-off (media)|spin-off]] of ''Ultima VI'' using the same [[game engine]], following the Avatar's adventures after the game's conclusion:
* In ''[[Worlds of Ultima: The Savage Empire]]'' ([[1990 in video gaming|1990]]), a failed experiment transports the Avatar to the Valley of Eodon, a [[jungle]] world populated by thirteen [[primitive tribe]]s whom he must unite against a common enemy, the [[Insectoids in science fiction|insectoid]] Myrmidex.
* ''[[Ultima: Worlds of Adventure 2: Martian Dreams]]'' ([[1991 in video gaming|1991]]) takes place after ''The Savage Empire'' and sees the Avatar travel back in time to the [[Victorian era]] and eventually land on [[Mars]] to rescue humans stranded on it by accident and to restore the native Martian civilization.
* The third game, ''Ultima: Worlds of Adventure 3: Arthurian Legends'', was planned to be set in the times of [[King Arthur]] but was canceled in [[1993 in video gaming|1993]].

The second spin-off series, ''Ultima Underworld'', consisted of three games with a [[First person (video games)|first-person]] perspective:
* Set after ''Ultima VI'', ''[[Ultima Underworld: The Stygian Abyss]]'' ([[1992 in video gaming|1992]]) sees the Avatar descending into the Great Stygian Abyss to rescue a Britannian [[baron]]'s kidnapped daughter and prevent the summoning of a powerful [[demon]].
* ''[[Ultima Underworld II: Labyrinth of Worlds]]'' ([[1993 in video gaming|1993]]) is set between the two parts of ''Ultima VII'' and starts with the Guardian trapping Lord British, the Avatar and his companions within an impenetrable barrier in their castle. To free them, the Avatar has to travel through several [[parallel universe (fiction)|parallel universe]]s looking for a way to undo the spell.
* ''[[Underworld Ascendant]]'' ([[2018 in video games|2018]]), the third in the series, licensed the lore and characters for the Underworld setting, but did not allow use of the ''Ultima'' brand. The Avatar has been transported to the Underworld and works with local factions.

A group of volunteer programmers created ''[[Ultima V: Lazarus]]'' in 2005, a remake of ''Ultima V'' using the ''[[Dungeon Siege]]'' engine.<!--

--><!-- Red link, notability not established: Another group of volunteer programmers created ''[[Ultima VI Project]]'' in 2010, a remake of ''Ultima VI'' also using the ''[[Dungeon Siege]]'' engine. -->