Designer Jacob Fryxelius Publisher Stronghold Games Players 1-5 Playtime 120 mins Suggested Age 12 and up Expansion For Terraforming Mars Expansion Terraforming Mars: Prelude 2 Accessories Terraforming Mars: Trade Fleets + Chairman Seat Minis Terraforming Mars: Rover First Player Marker The Dicetroyers - Terraforming Mars: All In One Box plus Player Boards Set (Italy Import) Additional Info 273473/terraforming-mars-turmoil http://boardgamegeek.com/boardgame/273473/terraforming-mars-turmoil/forums/63 Turmoil, the fifth expansion to Terraforming Mars, takes players back to Mars, and the struggle for control and progress of human society on a big and dangerous planet.The expansion includes new corporations, new projects, and a new type of cards — Global Events, from dust storms to riots to rising alloy demand — that give you something to plan for.—description from publisher