In Prelude 2 you are thrown right into the action, not only on Mars, but on Venus and the colonies as well, and the political arena is set for turmoil as you jumpstart your game.With actions and effects on your Preludes, Mars will never be the same again!In Prelude 2, most of the cards are specifically connected to other expansions of Terraforming Mars (Venus Next, Colonies, Turmoil). The 4 corporations and 13 of the Prelude cards are playable without any of these expansions though.This is an expansion to Terraforming Mars – it requires both the base game and Prelude to play.