The expansion added several features to the game, including a new region called the Lost Lands, new creatures, and support for player-built cities.

Released on May 4, 2000, it added content, fixed bugs, and made gameplay changes in response to common player complaints.

[citation needed] Prior to its release, the expansion was said to double the amount of room in the game, but that it would not use a duplicate of the map, rather it would be adding new content.

Malas was designed to appear as a broken continent, with various islands and pieces of land separated from each other and connected only with bridges.

The pieces of land were surrounded by stars, suggesting that Malas floats somewhere in space above the rest of the Ultima Online worlds.

The greatly increased land that Malas provided helped to lower the cost of housing, and gave more players the opportunity to own a home.

This change produced a variety of items such as blue broadswords, and orange katanas, which caused upset with traditional players who claimed that the unrealistically colored weapons detracted from the authenticity of Ultima Online (see: Criticism).

If used in conjunction with a "Book of Chivalry", a Paladin using the skill can perform powerful techniques, such as curing poison in battle, or teleporting to a new location.

Necromancy requires a separate group of reagents: Bat Wing, Grave Dust, Daemon Blood, Nox Crystal, and Pig Iron.

[20] The months following the release of Age of Shadows saw a significant exodus of veteran players from Ultima Online.

[citation needed] Many players insisted that the new brightly colored items detracted from the game's atmosphere strongly.

[citation needed] This was exacerbated by the fact that the expansion's release roughly coincided in time with an increase in the subscription fee.

[22] Mondain's Legacy is the seventh expansion to the Ultima Online MMORPG, featuring a new playable race, elves, along with a new skill and several new dungeons.

High Seas was announced during a UO Town Hall Meeting held on August 28, 2010 at EA Mythic/Bioware's division headquarters in Fairfax, Virginia.

New Areas: Shadowguard and Valley of Eodon; two new champion spawns; completing the virtue system; many new items; new skill-masteries; updates to classic housing.