Wondering what Ecos is all about, here is the information from AEG.
Game play in Ecos is simultaneous and caters to 2-6 players. Each round one player will reveal Element tokens from the Element Bag, giving all players the opportunity to complete a card from their tableau and shape the continent to their own purpose. Elements that cannot be used can be converted into Energy cubes or additional cards in hand or added to your tableau, to give you greater options as the game evolves.
Mountain ranges, jungle, rivers, seas, islands and savanna, each with their own fauna, all lie within the scope of the players’ options.