Letter Run

A clubhouse made of letters.

Letter Run is a free 3D scavenger hunt you play in your browser. The clubhouse lies flat on a sea of dotted waves in the Answer Cloud universe, and it is built from the letters A-N-S-W-E-R C-L-O-U-D. Each letter is its own themed room with its own mini-game. Win the game to collect the room's treasure.

Based on Letter Run by Edgar Allan.

Start playing

How to play

You control a small, round runner. The goal is to find all 11 treasures.

  1. Pick your sound

    Start with audio for music and sound effects, or without audio for a quiet game. You can switch any time with the sound button.

  2. Run and jump

    Use the arrow keys or WASD to move. Walk straight onto the letter rooms, and press the spacebar to jump onto furniture. On a touch screen, use the on-screen pad and jump button.

  3. Play the room's game

    A hint pops up the first time you step into a room. Each treasure floats in a glowing bubble. Step into the bubble to play that room's mini-game, and win it to collect the treasure.

  4. Fill your chest

    Open the bag button to see your collection. Find all 11 to finish the game, then reset it to play again.

The 11 rooms, games, and treasures

Each room has its own look, its own mini-game, and its own musical flavor. The music shifts as you move from room to room.

  • A · The Office

    Sunny yellow office with desks and a purple couch.

    Game: Stack the Files. Drop each sliding file box onto the pile. Overhangs get trimmed. Stack 8 to win. Press Space or tap.

    Treasure: Laptop

  • N · The Garden

    Grassy garden with rocks, bushes and a bench.

    Game: Penalty Kicks. The arrow sweeps across the goal. Shoot when it points away from the keeper. Score 3 of 5. Press Space or tap.

    Treasure: Soccer ball

  • S · The Studio

    Peach studio with a big worktable and bookshelves.

    Game: Sock Match. Flip two cards at a time to find matching socks. Match all 6 pairs. Click a card, or use the arrows and Space.

    Treasure: Socks

  • W · The Pool

    Teal pool deck with floaties and palm trees.

    Game: Keepy-Uppy. Move the float to keep the beach ball out of the water. Bounce it 10 times. Use the arrows, or move the pointer.

    Treasure: Beach ball

  • E · The Cafe

    Pink cafe with tables and stools.

    Game: Perfect Pour. Hold Space, or press and hold, to pour. Let go inside the marked band. Fill 3 cups. Don't overfill!

    Treasure: Mug

  • R · The Music Room

    Dark music room with neon floor lines and big speakers.

    Game: Echo. Watch and listen, then play the melody back. Use the arrow keys or tap the pads. Reach 5 notes to win.

    Treasure: Record

  • C · Outer Space

    Starry space room with floating planets and a launch pad.

    Game: Asteroid Dodge. Steer the rocket left and right to dodge the asteroids. Survive 15 seconds. Use the arrows, or move the pointer.

    Treasure: Rocket

  • L · The Gallery

    Cream gallery with easels and benches.

    Game: Picture Puzzle. Slide the tiles to rebuild the painting. Use the arrow keys, or tap a tile next to the gap.

    Treasure: Picture frame

  • O · The Study

    Mint study with green chairs and shelves.

    Game: Map Maze. Find a path through the maze to the globe in 45 seconds. Use the arrow keys, or tap where you want to step.

    Treasure: Globe

  • U · The Pet Room

    Lilac pet room with beds and bowls.

    Game: Bunny Bop. Bunnies pop out of the burrows. Tap them, or press keys 1–6, to give them a pat. Pat 10 in 25 seconds.

    Treasure: Bunny

  • D · The Sky Loft

    Sky-blue loft with puffy clouds to bounce on.

    Game: Cloud Hop. Bounce from cloud to cloud and climb up to the spark. Steer with the arrows, or move the pointer.

    Treasure: Spark

Credits: based on Edgar Allan's Letter Run

This game is based on Letter Run by Edgar Allan. The original is a 3D clubhouse game built with Three.js in Webflow. You explore rooms shaped like letters, follow the clues, and collect treasures.

The idea, the name, and the room-by-room treasure hunt all come from Edgar Allan's original. This version reimagines it in the Answer Cloud universe, with new letters, rooms, mini-games, and music.

Play the original Letter Run

How it's built

Letter Run is a 3D clubhouse that spells ANSWER CLOUD, built with Three.js. The rooms lie flat on a sea of dots that roll in slow waves and ripple wherever you walk, inspired by the waves on the Answer Cloud website. It has a loading screen, a start-with-audio choice, an airy soundtrack that changes from room to room, and 11 mini-games.

Everything you see and hear is generated in code. The letter rooms come from a custom rounded letter set that covers every letter from A to Z. Each letter is drawn as thick, rounded strokes and then turned into a 3D room. The furniture, treasures, and runner are simple 3D shapes. The music is synthesized live in your browser with the Web Audio API: slow, reverb-soaked pads, a soft drone, shimmering bells, and a gentle wash like rolling waves. There are no image, model, or audio files to download.

The game saves the treasures you have found in your browser, so you can come back later and pick up where you left off.

Ready to run?

Play Letter Run