A game of competitive puzzle design.

By ruthlessly guarded secret arrangement, the council's agents can pick any lock in the city. A secret guild produces the necessary locks - apparently secure, but with fatal hidden flaws. A ritual game is played to determine the best designs; to master it, you must build locks which can be picked only by one who knows the secret, and you must discover the secret flaws in the locks designed by your colleagues.

Coordinate a pair of tools to pick locks devised by other players in a mechanistic turn-based puzzle game; construct intricate locks of your own to protect the secrets you discover.

Free software, released under the GPLv3.

Written in Haskell, with SDL and Curses user interfaces.

Note: The version available for download here is rather old. It still works fine, but you might want to see the main game page for the latest version. I'm afraid you'll have to compile it yourself though, which may be tricky on non-unix systems. I can't build distributable binaries myself anymore.

Main game page