From 17 to 20 April 2026, I was on a family weekend in the Veluwe, the Netherlands, celebrating my parents’ 80th birthday. One evening, I decided to make a simple computer game with my 11-year-old niece Sienna using OpenAI’s ChatGPT 5.4.
I thought the classic Snake game would be a good place to start. Because Sienna loves horseback riding, we decided to make a horse-themed version of Snake instead.
With just a few simple prompts in Dutch, we had a working game up and running within minutes. Later, Renzo, Sienna’s 13-year-old brother, joined in and suggested a few extra game ideas.
Soon the game ran both on desktop and mobile, included voice-sound effects, and was online on my blog’s server. By the end of the evening most of the family were playing our game on their phones and getting surprisingly competitive, which was pretty funny.
A few days later, back at home, I spent a few more hours refining the game with Codex (OpenAI’s AI coding agent).
This is how the game now looks on desktop:
The latest version of the game can be played here: https://www.onlinecaveman.com/rest/sienna-snake
Admittedly, it’s a super simple game. But given the fact that it was created with AI in a matter of hours, without having to write a single line of code ourselves, is seriously impressive!
Other AI-related posts
- How I finally built my own weather app with AI (5 May 2026)
- AI is sprinting while most of us are still tying our shoes (6 Jun 2025)
- The Adventures of Little Man Max (31 Mar 2017)
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