I rebuilt Alan Turing's Bombe as a game where code-breaking turns dark to light

This is a submission for the June Solstice Game Jam What I Built The Longest Day is a code-breaking game for the longest day of the year — and an ode to Alan Turing. You play a cryptanalyst working a single solstice day, from dawn to the long midsummer midnight. Intercepted messages arrive as cold, dim letters against the dark. You decrypt them by hand — and the instant a key falls into place, the message warms from blue to gold and the whole scene fills with light. Decryption is illumination. T