Build and play-test a Mars simulator game

They used Grok Build to create, test, and refine a browser Mars simulator for a nephew.

Done with Grok Bot· Intermediate· Aug 2026

What they did
A developer gave Grok Build a few simple instructions to make a Mars simulator game for their nephew. The agent created the game systems, ran tests, looked at how the gameplay felt, and then tracked down bugs. It kept making changes and checking the result on its own.
How it went
The end result was a working Mars simulator game. It improved through repeated rounds of testing and fixes until it was playable from start to finish.
Tips
Give the agent a clear theme and a few core systems to build first. Ask it to pause before any major change and show what it plans to fix next.

Try it yourself with Grok Bot

Create a simple [theme] simulator game that runs in the browser. Build the core systems for [resource tracking], [survival], and [random events]. Then test the game by playing through it yourself, point out anything broken or boring, fix those issues, and repeat for [3] rounds. Before you remove, overwrite, or submit anything important, stop and ask me to approve it. When you finish, give me a short list of the changes you made and confirm whether the game works from beginning to end.

Fill in the [brackets]. Agents can make mistakes, so review anything before it is sent, paid or deleted.

Read the original on x.com ↗

Get 3 agent uses like this every morning

With the day's top AI news. Free, and one click to unsubscribe.