Turmoil, the fifth expansion to Terraforming Mars, takes players back to Mars, and the wrestle for control and progress of human society on a large and dangerous planet. The expansion has new corporations, new projects, and a new type of cards — Global Events, from dust storms to riots to rising alloy demand — that provides you with something to plan for 3 generations in advance.
In Turmoil, players can attempt to force their own agenda, or push it in a more moderate, economic way. They can play to mitigate the global events with influence, or change their play to better take advantage of them. Additionally they can anticipate the competing players' agendas and attempt to benefit from them, or counteract them. Turmoil is an expert expansion - be prepared to greet the full spectrum of human civilization in the era of terraforming Mars!