Keyforge

Brobnar is the fighting house, thematically inspired by Norse mythology and warrior culture. It features Giants and Goblins, along with powerful effects that enhance and reward fighting and destroying enemy creatures. Unlike many other houses, Æmber control is primarily achieved through Æmber destruction.

Dis is the disruption house, with an infernal theme embodied by Demons and Imps. Preventing players from choosing a house, from drawing or playing cards, giving chains, discarding and purging cards are all common ways Dis can control the game. 

Logos is the efficiency house. Drawing and archiving are the most prevalent mechanics in house Logos. Along with deck manipulation and allowing playing cards not from the active house, it brings consistency to decks more than any other house. 

Mars is the most insular house in KeyForge, with many effects that synergize only with other Mars cards. A secondary theme is abducting creatures into their opponent's archives.

Sanctum is a contrast to the demonic Dis: a house of Monks and angelic Knights. Sanctum's primary themes are board control through powerful creatures with armor, capturing Æmber and healing. Secondary themes are stunning and Æmber burst. 

Shadows is the sneaky house. It contains small, elusive creatures and powerful effects that deal direct damage and, more than any other house, steal Æmber.  

Star Alliance is thematically the opposite of house Mars. As the primary mechanics are allowing playing and using cards outside of the active house, Star Alliance brings cohesion and efficiency to decks.  

Untamed is the house inspired by nature and wilderness, featuring animals, plants, humans and other lifeforms. Untamed's primary themes are Æmber burst and recursion.