The Manhattan Project: Second Stageconsists of four small expansions that can be added to the base game individually or together.

• Nations 2works like the previousNationsexpansion, with each player getting one card to represent a country and gain a special power. Seven new countries and powers are represented.

• Rocket Technologyallows you to build a rocket factory when taking the “Design Bomb” action. Rockets work exactly like bombers – but fighters provide no defense against them.

• H-Bomb Technologyupgrades the “Design Bomb” action, allowing a player to return an available bomb to the bottom of the deck in order to acquire an H-Bomb card. To build an H-Bomb, however, the player needs Lithium Deuteride, which comes from new cards that work similar to Mines.

• Personalitiesadds seven roles to the game based on real individuals who contributed to the Manhattan Project. Each time you retrieve your workers you will select a different role. Each role will grant you persistent benefits until the next time you retrieve.