Original cover art
|Developer(s)||Origin Systems, Electronic Arts|
|Designer(s)||Raph Koster and over 20 more|
|Release date(s)||24 September 1997|
Ultima Online (UO) is a graphical massively multiplayer online role-playing game (MMORPG), released on 24 September 1997, by Origin Systems. It was instrumental to the development of the genre, and is still running today. The game is played online, in a fantasy setting similar to that of the other Ultima games that preceded it.
The success of Ultima Online opened the door for the creation of many new massively multiplayer games. Ultima Online is a fantasy role-playing game set in the Ultima universe. It is online-only and played by thousands of simultaneous users (who pay a monthly fee) on various game servers, also known as shards. It is known for its extensive player versus player combat system. To maintain order in the online community, there are Game Masters who resolve player disputes, police the shard for terms of service violations, and correct glitches in the game.
Since its release, it has added eight expansion packs, a booster pack and dozens of free content updates. The release of Ultima Online: Kingdom Reborn in 2007 brought a new game engine with a newer visual experience.
Ultima Online was "The first MMORPG to reach the 100,000 subscriber base, far exceeding that of any game that went before it". Since Ultima Online's prime in 2003, the overall subscriber base has seen a steady decline. Subscriber numbers peaked at around 250,000 in July 2003, and in 2008 sat around 100,000 subscribers. As of April 2008, Ultima Online held a market share below 0.6% of the massively multiplayer online game subscriptions.
Ultima Online is the product of Richard Garriott's idea for a fantasy game involving several thousand people who can all play in a shared fantasy world. There were a number of prior games that allowed hundreds of people to play at the same time, including Habitat (beta-tested in 1986), The Realm Online, Neverwinter Nights (the AOL version), and Meridian 59; however, Ultima Online was intended to be a significant improvement over the previous games, both graphically and in game mechanics. The initial team was composed of Garriott, Starr Long, Rick Delashmit and, a bit later Raph Koster, who became the lead designer for the project. Koster wrote a number of public "designer letters" and usually went by his nickname of Designer Dragon. Koster drew inspiration from a number of prior online games such as DartMUD.
The project started in 1995 and was shown to the public at E3 in 1996. The development cost was much greater than traditional computer games; it relied on people accessing servers via modem. Ultima Online initial features included persistent player housing, skill-based character progression (without levels or classes), a crafting and player-driven economy, and unrestricted player-versus-player combat.
Upon release, Ultima Online proved to be very popular, reaching 100,000 paying subscribers within six months of release, despite severe lag problems. Subscriptions continued to grow for several years, reaching a peak of some 250,000 paid accounts. Origin was able to make a great deal of money from the monthly fees required to play Ultima Online and many other companies took note and began development of their own massively multiplayer games.
Game mechanics 
Ultima Online continued the tradition of previous Ultima games in many ways, but due to advancing technology and the simple fact that it was Origin's first persistent online game, there were many new game mechanics as well. Partially designed as a social and economic experiment, the game had to account for the widespread player interaction as well as deal with the long history of players feeling as if they were the center of attention, as had been the case in single-player games. New to both the developers and the players, a lot that was planned never happened, and a lot that was unexpected did, and many new game mechanics were integrated to compensate.
Artificial Life Engine 
Starr Long, the game's associate producer, explained in 1996:
Nearly everything in the world, from grass to goblins, has a purpose, and not just as cannon fodder either. The 'virtual ecology' affects nearly every aspect of the game world, from the very small to the very large. If the rabbit population suddenly drops (because some gung-ho adventurer was trying out his new mace) then wolves may have to find different food sources (e.g., deer). When the deer population drops as a result, the local dragon, unable to find the food he’s accustomed to, may head into a local village and attack. Since all of this happens automatically, it generates numerous adventure possibilities.
However, this feature never made it beyond the game's beta stage. As Richard Garriott explained:
We thought it was fantastic. We'd spent an enormous amount of time and effort on it. But what happened was all the players went in and just killed everything; so fast that the game couldn't spawn them fast enough to make the simulation even begin. And so, this thing that we'd spent all this time on, literally no-one ever noticed – ever – and we eventually just ripped it out of the game, you know, with some sadness.
The game began with a single world, with specific expansion packs adding additional territory and new worlds. Beginning with the first expansion (Ultima Online: The Second Age), the original world gained the "Lost Lands", with additional land, dungeons, creatures, and terrain. It was only by the second expansion that a second and separate world, Trammel, was introduced. This led the developers to distinguish the original world by making the environment more grim, and naming this world "Felucca".
The worlds in Ultima Online include:
- Felucca: The original world. Once Trammel was created, developers added dead trees and tombstones to Felucca to distinguish it from Trammel's lush environment. This was to reflect Felucca's harsher rule set where player killing is more common.
- Trammel: The second expansion (Ultima Online: Renaissance) introduced Trammel, a second world geographically similar to the original world. Two player demands were satisfied with the addition of Trammel: a rule set that does not allow non-consensual PVP, and additional open land for player housing.
- Ilshenar: The fourth expansion pack (Ultima Online: Third Dawn) introduced Ilshenar, along with new dungeons and monsters. Originally accessible to only those who purchased the expansion, all players were granted access with the next expansion, Ultima Online: Lord Blackthorn's Revenge. This further expansion also added new land to Ilshenar, as well as more than 30 new creatures designed by Todd McFarlane.
- Malas: The fifth expansion pack (Ultima Online: Age of Shadows) added a world called Malas, including a Player versus Player arena and space for 1500 new homes. It features Dungeon Doom, the largest dungeon in the game to date, and two cities: Luna (the "City of Paladins") and Umbra (the "City of Necromancers"). Malas is a series of islands floating in a starry void, and is distinguished by a darker artistic style. Malas has been praised for its variety of creatures and geographic features.
- Tokuno: The sixth expansion (Ultima Online: Samurai Empire) added Tokuno, a group of islands based on Feudal Japan.
- Ter Mur: The most recent expansion (Ultima Online: Stygian Abyss) added Ter Mur, the land of the Gargoyles. The capital, Ter Mur, features space for player homes.
Issues faced 
Ultima Online has seen many major revisions throughout its history. This includes gameplay revisions, staff changes, technical revamps, porting the backend to Unix, and fundamental design changes. With few earlier MMORPGs to take lesson from, the staff behind Ultima Online were breaking new ground and had to solve complex issues that had never been faced in a commercial game on such a wide scale before. Understanding psychology, social interaction, economy, and other issues became increasingly important as complex social behavior evolved.
Throughout the pre-release development of the game, a well-balanced, realistic economy and social structure was the goal. While not all of the features planned for incorporation made it into the first release, the developers did manage to give almost all of the control to the players in terms of what they could do to each other and the world as a whole.
Another problem throughout Ultima Online's history has been flaws that allowed for cheating. In early years, methods to duplicate items were discovered and many took advantage of this loophole to mass produce gold and items, causing great harm in the game's economy and power structure. Even after this method was fixed, other methods were discovered over the years which bypassed server and game mechanics to duplicate items and gold. With the introduction of cross-shard character transfers, massive duplication between worldwide servers started to occur, greatly injuring the game economy.
Ultima Online was sued by former player volunteers ("Counselors") and settled in 2004 without admitting wrongdoing. AOL had their volunteers train customer service personnel it hired, then shut down the volunteer program. Concern over future lawsuits led Microsoft to shut down their volunteer program for Asheron's Call.
Expansions, sequels and other releases 
Throughout Ultima Online's history, there have been many major additions to the game. Two sequels were attempted and expansions have been released regularly.
Two sequels were planned by Electronic Arts, but both were canceled during development so that more focus could be spent on the original game.
- Ultima Online 2 (UO2), later renamed Ultima Worlds Online: Origin (UWO:O) was announced in 1999. It was to add steampunk elements to the fantasy setting, set in a world where the past, present and future of Sosaria were merged by a mistake made by Lord British while attempting to merge the shards of the Gem of Immortality. Todd McFarlane was hired to design original monsters and regions for the game, as well as help shape the story. It was cancelled in 2001 before its release, citing the competitive nature of the massively multiplayer online gaming market—Electronic Arts feared the sequel would harm Ultima Online's subscription numbers. Some of the monsters and art made for the game were later used in the Ultima Online expansion Lord Blackthorn's Revenge.
- Ultima X: Odyssey was a new MMORPG to be set in a world named Alucinor, created by the Avatar after the events of Ultima IX: Ascension. It was cancelled in 2004 when Electronic Arts closed Origin. The UXO team was invited to move to the Bay area to finish the game. However, only a small number of people on the UXO team accepted the transfer. In the end, UXO was cancelled because the development team dissolved.
Expansions have been released regularly, all of which add new content in the form of landmass, art, quests, items, or game mechanics.
- Ultima Online: The Second Age (1 October 1998) featured a new area of land called the Lost Lands, along with an in-game chat system and new creatures. Also known as T2A. It was released in two boxed versions with the first having different artwork and a single manual.
- Ultima Online: Renaissance (4 May 2000) doubled the size of the world, as there were literally two copies of it. The worlds were called Felucca and Trammel, after the two moons in Ultima's Britannia world. The Trammel world did not allow player killing and was geared towards fighting monsters. Felucca also adopted a darker, more foreboding look and kept its player vs player roots.
- Ultima Online: Third Dawn (7 March 2001) included a 3D client to compete with 3D competition like EverQuest. Also, a special Third Dawn only land was created, called Ilshenar. It was accessible only to 3D clients until the release of Lord Blackthorn's Revenge.
- Ultima Online: Lord Blackthorn's Revenge (24 February 2002) brought "a dark new world based on new characters from Todd McFarlane" to Ultima Online with improved game artificial intelligence, in-game help, and improved character creation.
- Ultima Online: Age of Shadows (11 February 2003) brought the landmass of Malas with space for new housing, two new character classes (Paladin and Necromancer) and the ability to customize house designs. The item system was completely reworked with this expansion. Armor resistance was split into five types of resistance, and many new properties that affected game play were added to weaponry. As good equipment became vital, this expansion also brought with it item insurance. Subscriptions reached a peak of over 250,000 accounts following the release.
- Ultima Online: Samurai Empire (2 November 2004) brought ancient Japanese mythology and folklore to the game, two new classes (Ninja and Samurai) and a new area to explore, the Tokuno Islands. The new class skills shifted the balance of player vs. player combat away from mage dominance.
- Ultima Online: Mondain's Legacy (30 August 2005) introduced a new race, elves, and a new skill, spellweaving. Several dungeons were also added.
- Ultima Online: Stygian Abyss (8 September 2009) featured a new playable race, the Gargoyle; additional play areas; and three new skills: imbuing, throwing, and mysticism. Stygian Abyss also featured significant upgrades to the Kingdom Reborn client, which has been renamed to the Enhanced Client. The original client is still supported.
Booster packs 
At a public relations event on 28 August 2010 it was announced that the development team was moving to a "booster" style development process. The stated goal was to release two boosters per year.
- Ultima Online: High Seas (12 October 2010) focused on additions to fishing, sailing and the pirate skill. Four new ship types, improved ship movement, pirate NPCs to hunt, and new boss encounters are introduced along with improvements to the fishing skill like new types of fish and crustaceans to catch and an increased skill cap.
Other releases 
Ultima Online has had several special releases which were not expansions, but came with boxed or in-game extras.
- Ultima Online: Charter Edition (30 September 1997) was available to pre-order from Origin Systems at the launch of Ultima Online and in small quantities alongside the standard retail box. It included a signed lithograph of the Ultima Online artwork by the Hilderbrandt brothers, a pewter pin badge bearing the Ultima Online logo, the box was not signed by Richard Garriott but simply bears a digital print of his Lord British signature. The Charter Edition also included the cloth map which was also a feature of the standard box.
- Ultima Online: Discovery Edition (1 February 2000) was release to the Australian and New Zealand markets at the same time as the launch of the Oceania server for the region.
- Ultima Online: 7th Anniversary (25 September 2004) was a special release of the game to celebrate Ultima Online's seventh birthday. Like all of the items listed in this section, this release did not bring anything new to the game and is not an expansion, although it did include a more recently patched CD; the Age of Shadows was still the most current version at the time. This release was contained in a small cardboard box containing a triple-CD jewel case, featuring Ultima Online: Age of Shadows, but also included Ultima IX: Ascension install and play discs as a special bonus. A glossy booklet showing the history of Ultima Online expansions was included which contained historic art and an interview from the Ultima Online team and community leaders. Also included in the package a code for an in-game gift, one of which was Ultima Online's famous Hilderbrant print, an extra character slot (a total of six characters was now available) and 7 buddy registration codes.
- Ultima Online: Gold (18 July 2005) was a special release sold by Wal-Mart and includes the same content as Ultima Online: Samurai Empire. This edition also comes with an Advanced Character token code, and quick-start manual.
- Ultima Online: The Eighth Age (25 September 2005) was a boxed game CD with an array of in-game tokens. Though not bringing any new features, the release was to celebrate Ultima Online's eighth birthday. The box included an updated game CD (with more recent patches), a glossy booklet featuring an atlas of Sosaria, in-game tokens for an anniversary gift (choice of 8), a character transfer, an advanced character and a 45-day free trial code. Also a time-limited blue soulstone was included.
- Ultima Online: 9th Anniversary Collection (31 October 2006). Formerly known as "Eve of a New Age." This came with an in-game upgrade code which redeemed 9 "Heritage Tokens", "Crystal" and "Shadow" items which matched new housing tile sets in the game, and attendants, which took the form of NPCs. These could be set to announce a player's presence in a house or to follow the player around on the map. The Heritage tokens could be redeemed for several kinds of items including special armor, weapons, and many house decoration items in various themes (3 fruit trees, a set of rugs, tables, a broken furniture set, a "dark" or evil furniture set and more).
- Ultima Online: Kingdom Reborn (27 June 2007) introduced a new client with new graphics and interface. This client was never finished and was replaced by the Enhanced Client in 2009.
Shard emulation 
Fans of Ultima Online have reverse-engineered the game to produce server emulators of the original Electronic Arts servers. With the modern emulation server software available today, it is possible to customize most aspects of the game and support large numbers of concurrent players on a single server.
Electronic Arts provides the standard clients with which players are allowed to connect to the Ultima Online servers, though some third-party clients have also been made.
Original client 
The original Ultima Online client is 2D and, while it was state of the art when released, it is intended to be used on low-end machines that cannot support the more taxing 3D client. It also presents a crisper, simpler artistic flavor that some people find more attractive than the 3D client. Many of the graphics used are high-resolution versions of graphics used in Ultima VIII: Pagan.
Ultima Online: Third Dawn client 
The 3D client was originally released as a part of the Ultima Online: Third Dawn expansion, but has received poor reviews from both veteran and new players alike due to a large number of performance issues (especially memory leaks early on) and what many see as sub-par graphics. An update to the 3D client was made on 30 January 2006 when characters and creatures from the game were scaled down to smaller sizes.
As of early May/Late April 2007, the Third Dawn client is no longer supported by Electronic Arts, and focus was shifted to the Kingdom Reborn client and its successor the Enhanced Client. Electronic Arts Ultima Online servers will no longer allow the Third Dawn client to connect.
Ultima Online: Kingdom Reborn client 
Ultima Online: Kingdom Reborn was announced in August 2006 and was released 27 August 2007. The new client, according to the Ultima Online team at Electronic Arts, was created for the purpose of modernizing the game's look, making it easy to add new content without backsliding through outdated and outmoded art, while maintaining the niche market as an MMORPG that can be run on lower-end computers. Electronic Arts has referred to the Ultima Online: Kingdom Reborn client as "2.5d," meaning that it was written in 3d and then effectively backslid into 2d to make it, in theory, easier for lower-end computers to run. The client is available as a free download for current players of the game.
Statements made by Electronic Arts originally stated that the Ultima Online: Kingdom Reborn client would replace the long-standing Ultima Online client. However, at the first of several Electronic Arts-sponsored players' conventions referred to as "UO Town Meetings," in Atlanta, Electronic Arts representatives suggested that the two clients would exist side-by-side until about 80% of the players had switched over to the new client. The support for this client is ended on 9 September 2009, to streamline the patch process prior to the release of the Ultima Online: Stygian Abyss expansion.
Enhanced Client 
A modified version of the Kingdom Reborn client, renamed as the "Enhanced Client," was introduced as part of the Stygian Abyss expansion. It was released as an open beta in July 2009 and the changes included enhanced macro abilities, a more configurable interface, changes to the mapping system, and graphical improvements. The enhanced graphics of the Kingdom Reborn client had been retired in favor of lower resolution original graphics that more closely resembled the original 2D client. This graphic set was based on the Third Dawn client and was previously available in the Kingdom Reborn client as optional original graphics.
||This section describes a work or element of fiction in a primarily in-universe style. (November 2009)|
In May 1996, Ultima Online: Shattered Legacy is shown at the 1996 E3 Expo. Then, in August 1997, Lord British had an unfortunate accident. While giving a speech to a bright-eyed Britannian crowd, the King was engulfed in flames and spent some time in the realm of the dead. He was killed by Rainz, who was later banned from the game for reasons unrelated to the killing. Later, with the aid of his companions, he was revived and finished his speech, much to the delight of those in attendance.
September 1997 was the last day of the original beta test. The beta ended with a bang, as players were treated to an "end of the world" scenario with Shadowlords, demons, and other evil creatures slaughtering every character in sight. Ultima Online opened its doors to the public. In 1998, the game expanded, and the number of users reached over 100,000 worldwide. In 1999, the game expanded to Japan in January, to Europe in May, and to South Korea in July.
In 2000 the game expands to Australia. Lord British disappears. Rumors fly on the wind about the disappearance of the King. Some claim he was abducted by mongbats, while others insist that it was the work of more malevolent forces. In February, a massive army of undead laid siege to the once peaceful city of Trinsic. Due to the overwhelming odds, the dark army managed to conquer the city under the leadership of Juo'nar and the Dark Mistress Minax. All hope seemed to be lost, but noble Britannians from all over rallied together and reclaimed the city from the clutches of evil! In May, Ultima Online's second expansion marked the beginning of a new era in Britannia. With the splitting of the lands into the facets of Trammel and Felucca, players could choose their geography based on their play style. November 2000 marked the UO World Faire. Players from all over met and mingled in Austin, TX at Ultima Online's first official fanfest.
Ultima Online's third expansion occurred in March 2001, introducing the new land of Ilshenar, new beasts and monsters, and an entirely new way to view the game. Online Worlds FanFest. Ultima Online's second official fanfest, Online Worlds FanFest, was held in Austin, TX in January 2002. Players were able to meet the Developers behind the game, as well as special guest speaker Todd McFarlane. February 2002 marked Lord Blackthorn's Revenge. Ultima Online's fourth expansion brought players into a world under siege, replete with more than 30 new and exotic characters created by none other than Spawn creator Todd McFarlane. However, in May, Royal Knight of Britannia, leads the fight against Blackthorn and Exodus. He would be slain in June 2003.
Ultima Online's fifth expansion in 2003 was the most aggressive yet, offering players the ability to custom design their homes, the Paladin and Necromancer professions, a new land called Malas, and 13 new combat moves. In March 2003 Ultima Online reached 250,000 subscribers. Lord British returns in September 2003, the same month as the game's 6th anniversary.
Ultima Online: Samurai Empire launched in November 2004. Samurai Empire is a Japanese-themed expansion, offering two new professions, the Ninja and the Samurai, as well as new Japanese-themed housing tile sets. New lands, the Tokuno Islands, were added, with the cities being styled after ancient Japanese cities. Ultima Online: Mondain's Legacy was then launched in August 2005. This is the first time Ultima Online allows for more than one player race, as Elves are added. The quest system received a major upgrade, as did the crafting system. Spellweaving was added to the skills. Many new dungeons were added to existing areas. This expansion was also the first that was only available online (offline versions on CDs could be ordered).
In June 2006, Electronic Arts announced that PunkBuster would be integrated into Ultima Online. This marked the first time PunkBuster would be used with an MMORPG to help curb cheating/exploiting. However, this was never integrated into the game, and in November 2006, Electronic Arts announced that the integration of PunkBuster would be put on an indefinite hold. In August of that year Ultima Online: Kingdom Reborn was announced. This was the first major overhaul of the client and artwork systems since Ultima Online: Third Dawn.
Ultima Online's success resulted in Guinness World Records awarding the game 8 world records in the Guinness World Records: Gamer's Edition 2008. These records include "First MMORPG to Reach 100,000 Players", "Longest Running MMORPG", and "First and Only Person to Kill Lord British", which was done by a player named Rainz during a server reset which turned off his invulnerability.
In May 2001 Ultima Online won the MPOGD game of the month award 
In 2010, Ultima Online was the first inductee into the Game Developers Choice Online Awards Hall of Fame.
In 2012, Stratics presented Ultima Online with a "Historic Achievement Award" to commemorate "fifteen years of innovation, imagination, and dedication in support of the Ultima Online community." Time designated it as one of the 100 greatest video games of all time in November 2012.
See also 
- Ultima Worlds Online: Origin (Ultima Online 2) First canceled sequel.
- Ultima X: Odyssey Second canceled sequel.
- "Ultima Online for Linux FAQ". Reverser.hut.ru. Retrieved 2012-07-29.
- "10 Years of Ultima Online: Ultima Online Through the Ages". 1up.com. 2007. Retrieved 2010-09-08.
- "EA Announces Ultima Online(TM): Kingdom Reborn (Working Title); The Game That Firmly Established the MMORPG Genre Receives a Massive Visual Overhaul and New Content in 2007". Electronic Arts. 24 August 2006. Retrieved 3 May 2011.
- mmodata.blogspot.com (2012). "Subscriptions (SS) and Active Accounts (AA) with a peak between 150k and 1m.". mmodata.blogspot.com. Retrieved 2012-07-19.
- MMOGchart.com (2008-04). "MMOG Subscriptions Market Share". MMOGchart.com. Archived from the original on 5 June 2011. Retrieved 2010-11-19.
- "Raph Koster's Website". Raphkoster.com. Retrieved 2012-07-29.
- Koster MUD-Dev Posting "DartMUD was influential on me, certainly—ought to have been for everyone."
- Alexander, Thor (2003). Massively Multiplayer Game Development. Charles River Media. p. 24. ISBN 1-58450-243-6, 9781584502432 Check
- Alexander, Thor (2003). Massively Multiplayer Game Development. Charles River Media. p. 22. ISBN 1-58450-243-6, 9781584502432 Check
- Alexander, Thor (2003). Massively Multiplayer Game Development. Charles River Media. p. 91. ISBN 1-58450-243-6, 9781584502432 Check
- Garriott, Richard. "Good Game interview". in conversation with Bajo of Good Game. ABC Television, Australia. Retrieved 3rd of March, 2011.
- "Ultima Online: Renaissance (PC) – PC Games – CNET Archive". Reviews.cnet.com. Retrieved 2012-01-29.
- "Ten Years of Ultima Online from". 1UP.com. Retrieved 2012-01-29.
- Gaz, Big (3 April 2002). "Blackthorns Revenge Released – News at Gameplanet New Zealand". Gameplanet.co.nz. Retrieved 2012-01-29.
- "Ultima Online Age of Shadows (PC) – PC Games – CNET Archive". Reviews.cnet.com. Retrieved 2012-01-29.
- "[ RPGamer ] Preview: Ultima Online: Age of Shadows (Windows)". Rpgamer.com. Retrieved 2012-01-29.
- [dead link]
- by T.L. Taylor (19 April 2004). "UO lawsuit settled". Terranova.blogs.com. Retrieved 2012-07-29.
- Developing Online Games by Mulligan and Patrovsky, page 252
- Electronic Arts (2003-03). "ORIGIN Systems Announces Record Number of Subscriptions". Electronic Arts. Retrieved 2009-09-03.
- Zeeman, Chrissay (8 September 2009). "Publish 60 Notes". Retrieved 3 May 2011.
- Crowner, Calvin (14 August 2009). "Open Beta Begins!". Retrieved 3 May 2011.
- Electronic Arts (2010-08). "Town Hall Event Announcing Adventures on the High Seas". Electronic Arts. Retrieved 2011-05-03.
- Crowner, Calvin (3 September 2010). "Producers Update – 9/3/10". Retrieved 3 May 2011.
- Crowner, Calvin (10 September 2010). "Producer's Update – 9/10/2010". Retrieved 3 May 2011.
- The Ultima Online Team (12 October 2010). "Welcome to the High Seas! – Publish 68 Notes". Retrieved 3 May 2011.
- "Ultima Online: Kingdom Reborn for PC". Gamespot. Retrieved 2008-09-29.
- Zeeman, Chrissay (7 September 2009). "Kingdom Reborn Client". Retrieved 2 May 2011.
- Crowner, Calvin (17 July 2009). "New Client Open Beta". Retrieved 3 May 2011.
- Five Biggest Moments in UO History. Computer Gaming World. 2 November 2002.
- Brad King (8 June 2002). Make Love, Not War Games. Wired (magazine).
- Chris Morris (4 March 2003). Electronic Arts' online folly. CNN.
- UO Fans Get Medieval – Wine, women, and song at the Ultima Online World Faire.. Computer Gaming World. 1 February 2001.
- Guinness World Records: Gamer's Edition 2008. ISBN 1-904994-20-2.
- "Multiplayer Online Games Directory / GOTM". Mpogd.com. Retrieved 2013-04-22.
- The First Annual Game Developers Choice Online Awards.
- Stratics Presents Historic Achievement Award to Ultima Online Team.
- Peckham, Matt (2012-11-15). "All-TIME 100 Video Games". Time. Retrieved 2012-12-02.
- UOForums Interviews Mesanna (UO's Associate Development Manager).
- Interview with Punkbuster's Founder, Tony Ray.
- Interview with Jeremy Dalberg, Community Coordinator for Ultima Online.
- Interview with Tim "Draconi" Cotten, Designer for Ultima Online.
- Interview with Dave "Cathat" Brown, Character and Environmental artist.
- 2nd Interview with Dave "Cathat" Brown, Character and Environmental artist.
- Ultima Online.
- UO.com – The official Electronic Arts Ultima Online site.
- UOGuide – Ultima Online wiki
- UO Forums – Ultima Online forums.