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Croak Signal

Keep a dead radio tower talking in Morse, by flashlight, while the marsh frogs sing.

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About

Marsh Station 7, 1958. The tower has gone off the air, and you're the operator sent to bring the signal back, one night at a time.

Walk the jetty and the tower, climb its ladders, read the notes the last operator left behind, and tap out Morse with your flashlight to open hatches and wake the transmitter. The frogs keep you company while they sing. When they go quiet, switch the light off: something out there is looking for it.

Screenshots

The title screen: an operator on a jetty in the night marsh sweeps his flashlight past the Croak Signal logo while frogs sit on lily pads.Inside the tower, the operator's flashlight lights a note on the wall giving the station's call sign in Morse, while the boat's lamp glows out on the marsh.The operator taps Morse at a hatch's light sensor; the dash-dot he has typed shows at the top and the Morse card highlights the matching letter N.The frogs have gone quiet: the screen glows red, two eyes watch from the dark and the operator waits with his flashlight off.The hatch has unlocked and the operator climbs the ladder to the next floor, his beam pointing up the shaft.The result screen after the last night: Signal Restored, with the call sign A in Morse and the thing in the marsh never seeing the operator.
The title screen: an operator on a jetty in the night marsh sweeps his flashlight past the Croak Signal logo while frogs sit on lily pads.
The title screen: an operator on a jetty in the night marsh sweeps his flashlight past the Croak Signal logo while frogs sit on lily pads. · 1/6

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Lab notes

v0.1.0 13/10/2026 First Labs build: the Marsh Station 7 campaign.

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