This set adds nine new cards to the Star Realms deckbuilding game. It includes Challenge cards with new solitaire and cooperative rules as well as a new card type called Gambits. The set includes:

Frontier Fleet (Gambit)
Merc Cruiser (Unaligned Ship)
Pirates of the Dark Star Co-op Challenge
Pirates of the Dark Star Solo Challenge
Political Maneuver (Gambit)
Rise to Power x2 (Gambit)
Salvage Operation (Gambit)
Surprise Assault (Gambit)