Deck of Spies

From BoardGameGeek:

Recruit, counter, retire, and assassinate to dominate in Deck of Spies, a solo deckbuilding game played with a standard deck of cards. The top card on the Spy Deck represents a spy that you must outwit. Each turn you must either counter or recruit the spy that is face up on top of the Spy Deck. Optionally, you may be able to retire spies from your hand in addition to your counter or recruit action. If things aren't going well, you may be forced to assassinate your target. To win Deck of Spies, at the end of the game you must have more than half of the Key Spies (J,Q,K's) in your deck.