In the future, the engine that drives the economy is the operation of mines and it is Crystalon Celestia which is the most valuable mineral, thanks to its immense potential energy. The six great kingdoms of Infiniton have colonised Celestia Quasaris, an uninhabited planet where large quantities of this precious resource have been detected. Each kingdom erects its own mining city to extract and exploit the mineral. The rulers of each kingdom meet annually in the Concilium to define the rules that govern the new planet.

Concilium is a citybuilding game in which there are scoring cards called Law cards. All tiles in your city will get points at the end of the game as shown by the law cards. During the game, you can change this score using the voting procedure.

Within the Laws deck, for each Law, there is a card which increases the score ratio for the card and another that decreases the score ratio. Despite two cards being removed from the deck at the beginning of the game, it is important you manage this information to make your votes count.

Concilium is played over a total of 7 rounds. Each round contains 4 phases: Reveal, Construction, Production, Voting. You will find alliances, voting, mineral-energy management, and tile placement as scoring patterns.

The player with the highest score wins.

—description from the publisher