Core Worlds: Nemesis is the official solo version of the Core Worlds deck-building game. This expansion allows you to play against the A.I.-driven Nemesis Empire during your bid to conquer the Core Worlds. The Nemesis is represented by a special deck of 64 cards that simulates play against a human player. You will have to summon all of your cunning to overcome this treacherous foe! As a bonus, Core Worlds: Nemesis also includes all 30 promo cards that have ever been released for Core Worlds over the past ten years.