The system, called the combat dial, has proved to be highly popular and is used in WizKids's other games, including HeroClix and MechWarrior.
The factions in the initial release included the Atlantis Guild, the Elemental League, the Black Powder Rebels, the Draconum, The Knights Immortal, the Orc Raiders, and the Necropolis Sect.
A formation combat action could also be taken, in which multiple adjacent figures of the same faction attack and increase the chances of successfully hitting the target.
In addition, WizKids gave away limited edition, Unique versions of the non-Unique figures in the sets as prizes for tournaments in comic and game shops.
Some expansions had ultra-rare "chase" figures, listed as rarity level 7, which were produced in limited quantities and found randomly in boosters, such as the Apocalypse Horsemen in Sinister or the glow-in-the-dark variants from Minions.
In 2002, the Dungeons expansion was released in starters and boosters, which featured a new type of gameplay more akin to traditional RPG "dungeon-crawl" adventures.
The Dungeons format featured two expansions of its own, Pyramid and Dragon's Gate, and two fixed 5-figure sets with special characters, maps and scenarios titled Heroic Quests.
In addition, WizKids released 3-dimensional plastic floor tiles, walls, doors, and objects which could purchased to build a full scale dungeon.
In November 2003, WizKids released a new "base" set (their third, after Rebellion and Unlimited), colloquially referred to as "Mage Knight 2.0," with many rules overhauled or expanded, which introduced new strategic possibilities to the game, including capabilities to customize Unique warriors and battles via styrene cards called Items, Domains, and Constructed Terrain.
This change also made all original series character redundant as they were no longer tournament legal, this meant that loyal followers abandon the game and sales and popularity plummeted.
In addition, the Unlimited set released a special "Painter's Edition" which featured miniatures which were unpainted and removed from the bases for customizing purposes.
Published by IDW beginning in 2002, the Mage Knight comic book series was written by Todd Dezago based on a story by Jordan Weisman.
Issue #1, released in October 2002, came with a certificate that could be redeemed for an exclusive figure of Maren'Kar, one of the characters in the comic book.