Escape the Park turns Valley Forge National Historical Park into three self-guided outdoor mystery games, played on your own phone with no guide and no fixed schedule. Pick one — you are buying the game you choose, not all three.

Washington's Secret Soldiers is built for junior agents ages 6-12. Using a secret Spy Codebook, they crack messages left by Revolutionary War spies at five real landmarks to deliver Washington's lost battle order.

Lafayette's Dispatch is the intermediate game. Play the Marquis de Lafayette, gather a letter at each monument across the encampment, and send the dispatch that brings France into the Revolution.

The Mystic Tie goes deepest, tracing the Freemason bonds among Washington's officers to decode the brotherhood's hidden word.

Each game stands alone and runs 1.5 to 2.5 hours at your own pace, on foot or by car. Play one now and save the others for next time, or make a full day of it. Start anytime, play as a group, and bring the Revolution to life.