You haven't left this room in four years. Then the shortwave radio starts sending your coordinates — in Morse.

Isolated Frequency is a slow-burn first-person horror adventure. You learn Morse code from the old radio on your desk — a practice station, a chart, a speed slider — until one night, above 100 MHz, there's a pulsing sound that isn't a broadcast. Inside it, someone is sending numbers. The numbers are the coordinates of your room.

https://nrnbgames.itch.io/isolated-frequency

What you do - Tune the dial through static until a signal locks (the mystery frequency moves every night) - Listen, write the dots and dashes down, look them up, type the word - Build what the signals send you — parts fall out of the air after every decoded message - Post about it on a forum nobody reads. Watch the replies turn.

The Morse is real. The game is built to teach it from zero: an always-available chart, 6–25 WPM, letter-by-letter playback, and three difficulty modes — automatic dot/dash logging (Beginner), tapping it yourself on a straight key or paddle (Advanced), or nothing but your ears (Expert). Most players read short words by ear by the end.

Free demo, in your browser: the first five days (about an hour) play right on the demo page — no download. The full game is 12 days, 2–3 hours, three endings, Windows / Linux, $5.99.

Made solo in Godot 4. Everything in the room — geometry, textures, every sound including the Morse — is generated at runtime; the only file that isn't code is the font. 9 languages.

Trailer: https://youtu.be/y63nk5E2-D8

I'll be around in this thread — questions about the Morse input, the procedural audio, or "is 8 WPM really slow" are all welcome.