Here is a variant by Cedric Lapouge, allowing team play in Rumble in the House and Rumble in the Dungeon.
By combining 2- and 3- players teams, all configurations from 4 to 12 players are supported.
Set-Up :
Teams of 2 : Players of the same team sit in front of each other. Once each player of the team has looked at his two secret character tokens, he gives one to his team mate.
Teams of 3 : Players of the same team sit at equal distance of each other. Once each player of the team has looked at his two secret character tokens, he gives one to his left team mate.
Scoring :
In team play you only play one adventure. The team scores for the team's 3 best characters. The team with the highest score is awarded the hero's guild title.