Game Development with AI
Prototyping Games with ChatGPT and Codex
Turn a game idea into a small prototype with ChatGPT and Codex. A practical task covering one mechanic, clear states, restart behaviour and device checks.
Updated: 2026-10-21
Explaining an idea and running a project are different steps
Use conversation to define the rule and first-build boundaries. Codex CLI can inspect and edit local files and run commands. Introduce the existing engine project, then complete one gameplay loop instead of requesting an entire game at once.
Build a single-shot puzzle prototype
Example brief: In this 2D project, let the player choose a direction and launch one ball. Offer retry when it leaves the screen and show the result once when it reaches the target. Use the current engine and assets. Explain relevant files and a plan, then changes and checks.
Inspect collisions and input separately. Bricks Breaker images illustrate a game; they do not show this exercise being applied to its source code.
Actual images and logo from our game Bricks Breaker: Ball Puzzle. The task is a learning exercise, not a claim that this game was developed with the AI tool discussed.
How to check the result
- Can one tap create multiple balls or result events?
- Does retry remove old balls, counters and listeners?
- Have edge collisions and different screen ratios been tried?
Identify checks that could not run
Without access to the engine or device tools, do not report the result as tested. Inspect the diff, open the project in its engine and try input on a phone. Establish a consistent loop before evaluating visual polish.
The AI game development series
Six parts take you from an idea to a playable prototype, level design and mobile release. Follow the links to read the complete series.
Frequently asked questions
Does Codex publish a game to a store in one command?
It can assist with the project, but builds, device checks, signing and store preparation need verification. Producing code is not release approval.
SourSpark
Turn a small mechanic into a playable game.
Share your idea, intended players and iOS/Android plans so we can define the first playable build and its tests.
Discuss my game idea