A Five-Day Astra Run Builds a City Simulation

SUMMARY

In 30 seconds

In this short demonstration, Matthew Berman says he used the /goal command with Astra to build a playable city simulation over five days. He points out buildings, moving people and traffic, while noting that the project was still unfinished when he shipped it.

1A five-day runBerman says he used /goal with Astra and it ran for five days creating assets.
2City infrastructureHe names a fire station, police station, hospital, nuclear plant and university among the buildings.
3An unfinished simulationHe points to pedestrians and cars, while saying he shipped the project before it was complete.

Takeaways

Berman says an Astra /goal run continued for five days and created individual assets.
The displayed city includes buildings, pedestrians and traffic.
He describes the game as playable but says it was not finished after the five-day run.

TopicsCoding agents Vibe Coding Software engineering

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Building the city

Berman says Astra generated individual assets across a five-day run. He points out several types of city infrastructure.

SLIDE 1 / 1City simulation interfaceThe demonstration shows a built-up city alongside its construction controls and indicators.

I used /goal with Astra, and it ran for five straight days, creating each asset one by one. The city includes a fire station, police station, hospital, nuclear energy plant and university.

Showing the simulation

He describes a playable city with people and traffic. He says the project was still unfinished when he shipped it.

This is a playable city-building game. You can see people walking and cars driving through traffic. After five days it still wasn’t finished, but I decided I had to ship it.