Robot Spy

A 3D hide-and-seek game, made for phones and tablets.

A crowd of robots walks the streets of a neon city at night. The WANTED poster shows the robot you're looking for. Find it and tap it before the time runs out.

• Drag to pan, pinch to zoom in on the crowd, and rotate the city to look behind towers. Hidden robots glow blue through walls.
• A wrong tap costs 5 seconds.
• Scan marks the rough area of the target for 10 seconds, at the cost of 10 seconds.
• 🏠 in the corner goes back to the list of all games.

Play: https://tb-x.github.io/robot-spy/

Running locally

It is one index.html plus the sound clips in assets/, with no build step. three.js 0.169 loads from jsDelivr. Serve the folder over HTTP, for example:

python -m http.server 5203

Then open http://localhost:5203. Opened straight from disk the game still works, but the browser won't load the clips: you hear the built-in synthesized sounds, and the spoken lines are silent.

During a search a little spy tune plays. It's made in the browser as the game runs, so it never repeats exactly, gets a bit faster in the last 10 seconds, and dips while the voice is talking. The sound button mutes it with everything else.

Play offline (add to Home Screen)

On iPhone or iPad, open the game in Safari, tap Share → Add to Home Screen, then open it once from the new icon while online. After that it starts full screen and works without internet. Changes I publish arrive on their own: the next online launch downloads them and the one after shows them.

(How: manifest.webmanifest gives the icon and full-screen mode; sw.js, a service worker, keeps a copy of every file the game uses, including three.js, the font and the sound clips.)

Sound knobs

At the top of the sound and music sections in index.html:

• CLIP_VOL and VOICE_VOL: how loud the sound effects and the spoken lines are (0 to 1).
• CLIP_TRIM: per-clip volume trims that even out the clips. Lower a number if a sound is too loud.
• MUSIC_VOL: how loud the music is; MUSIC_DUCK: how far it dips under the voice.
• MUSIC_BPM and MUSIC_HURRY: the tempo, and how much faster it gets in the last 10 seconds.
• ASSET_V: bump it after replacing any file in assets/, so phones don't keep the old one.

Audio credits

Voices and sounds: elevenlabs.io. All clips were made on 2026-10-08 with an ElevenLabs free plan, so they may only be used non-commercially and must credit ElevenLabs. They are not covered by any licence on this game's code.

• Spoken lines (assets/say-*.mp3, 12 clips): voice "Roger", model Eleven Multilingual v2. A briefing per level, the wrong-tap and "so close" lines, two "found it" lines, the scan hint, the five-seconds warning and the time's-up line.
• Sound effects (assets/sfx-*.mp3, 5 clips): ElevenLabs Sound Effects. Error buzzer, success jingle, radar scan, power-down and power-up chime.

The music, the button tap and the last-five-seconds tick are synthesized in the browser.