Ghosts of Liberty

'Ghosts of Liberty' is yet another mobile/pervasive game (played in Boston) and designed by Urban Interactive.

Players roam through the lamp-lit alleys of Boston's North End, following a trail of ghostly messages to track a mysterious enemy of the state. A cell phone weaves electronic gameplay and live action into the nocturnal ambiance, as participants race against the clock to solve riddles, discover hidden items, and interact with characters both real and digital.

(picture by Evan Richman/Globe Staff)

The Boston Globe has a piece about it, somehow describing how the players apprehended the game:

Met by a ``secret agent," Bitkower's foursome was handed a cellphone programmed with all the night's clues, an ultraviolet pen, a map of the North End, a ``classified" case briefing, and a folder to open in the event of an emergency (i.e., if they became hopelessly lost).

Wolfe's wife, Nan, a kitchen designer, took over as master code-breaker, jotting down letters and numbers from bronze plaques and muttering aloud solutions. Bitkower, the group's text-message fanatic, was glued to the cellphone, tripping over cobblestones and even a small fence in his haste to relay information from digital maps, text messages from ``Director Finch," and voice mails from a ghost-channeling psychic to the group. As the team raced down Salem Street past Bova's Bakery , Jim Wolfe signaled to turn left instead of right -- to throw other groups off their scent. ``I feel like we're behind," said Jerry Ringuette, an information technology specialist from Quincy, before sprinting down Commercial Street in search of a woman's feather boa. Lost on Hanover Street, Bitkower slyly reached into his coat pocket for a travel map. ``We brought a cheat sheet," he whispered.

Check also the players' briefing sheet.