Horror sound effects: 12 free sounds from one prompt
Play 12 horror sound effects that Claude Code made from one prompt. Copy any sound's prompt, or download the pack as WAV files.
What we asked“Make a sound effect pack for a slow, creepy horror game: dark, unsettling, mostly low and quiet. Save each sound as a WAV file in a sounds folder, named like this: - dark-drone: A low, uneasy humming drone with faint shifting tones for a dark empty house, seamless loop of about six seconds. - heartbeat: A slow heavy heartbeat thumping twice, muffled and deep, for rising fear, about one second. - door-creak: A long slow wooden door creak opening into a dark room, about two seconds. - jump-scare: A sudden harsh screeching stab of noise and dissonant tones for a jump scare, about one second. - whisper-wind: A cold breathy wind that rises and falls like distant whispering air, seamless loop of about five seconds. - footsteps-far: Slow heavy footsteps on old wooden floor somewhere far away, muffled and echoing, about three seconds. - flashlight-click: A small plastic flashlight switch clicking on, dry and close, under a quarter second. - light-flicker: A failing light bulb buzzing and flickering with short electric crackles, about two seconds. - metal-scrape: A slow screeching scrape of metal dragged across concrete in the distance, about two seconds. - note-pickup: Picking up an old paper note: a dry rustle with a low eerie tone underneath, about one second. - ghost-moan: A ghostly hollow moaning tone that bends slowly up and down with a soft echo, about two seconds. - dread-sting: A dissonant low swell rising into a sharp sting when something is discovered, about two seconds. Make them sound like they belong to the same game.”
What happened
Claude
All 12 sound effects are in sounds/. They're mono, 16-bit, 44.1 kHz WAV files and the lengths match your spec. I checked them with automated analysis (lengths, levels, loop seams, no clipping), but I can't listen to audio, so give them a listen before they go into the game.
We gave the prompt above to a fresh Claude Code session in an empty folder, with no skills and no extra tools. It wrote a small program that makes every sound from scratch, and it took about 4 minutes. Claude can’t hear, so it checked the sounds by measuring them. Press play and judge them yourself.
Every sound is also in the sound effects library, where you can search all packs at once. They are free to use in your games, commercial or not.
