Terraforming Mars: Prelude Expansion

In Terraforming Mars: Prelude, you choose from Prelude cards that jumpstart the terraforming process or boost your corporation's engine. There are also 5 new corporations and 7 project cards that thematically fit the early stages of terraforming a new planet. Prelude is an expansion to Terraforming Mars, and can be combined with any other Terraforming Mars expansion or variant.