AI ARCADE · BUILD KIT

Shared game brief

Paste the shared brief and one game line into each AI platform. Same rules for everyone, so the results can be scored fairly.

1 · Shared brief (same for every platform)

Build a complete, original 2D browser game as ONE self-contained HTML file (HTML, CSS and JavaScript in the same file, no build step, no external image or audio files).

Requirements:
1. Runs on any device (phone, tablet, desktop) in BOTH landscape and portrait: full-screen responsive canvas that re-lays out on rotation (never a "please rotate" screen), on-screen touch controls plus keyboard.
2. One complete level or stage with a clear goal, rising difficulty, a win screen, a game-over screen and a restart button.
3. Modern visual style, drawn in code. Original title, characters and names: no trademarked or copyrighted names, characters or logos.
4. Sound effects and music generated with the Web Audio API, a mute button, audio starting only after the first tap.
5. HUD with score and lives or health, plus a pause button.
6. Smooth 60 fps on a mid-range phone.
7. Short title screen that explains the controls.

Deliver the single HTML file first. Then list three improvements you would make with more time.

GAME: [paste the game line below]

2 · Gemini game line

A 2D arcade racing game with a vertical scrolling road: dodge traffic, collect boost and fuel pickups, and reach a finish line after about two minutes.

3 · Copilot game line

A 2D vertical air-fighter shooter: waves of enemy aircraft, power-ups, a mid-level mini boss and a final boss.

4 · Mistral game line

A 2D maze chase game: collect every pellet in a labyrinth while avoiding patrolling enemies, with a power-up that lets you turn the tables for a few seconds. Use an original title and original characters.

5 · ChatGPT game line

A 2D platformer: run and jump through one themed level with moving platforms, collectibles, enemies to avoid or defeat, a checkpoint and a boss at the end. Use an original hero and an original title.

After each build, note down

  1. Time spent and number of prompts or fixes needed
  2. Cost (free tier, subscription or API)
  3. What worked first time and what had to be fixed
  4. Score out of 5 for each criterion on the landing page