My first day with Antigravity

Published: (December 18, 2025 at 10:19 PM EST)
2 min read
Source: Dev.to

Source: Dev.to

Introduction

I didn’t write anything for a while—mostly because work kept me busy. Starting yesterday (Dec 17), I’m on holiday break, so I finally have time and energy to explore interesting things.

Research Topics

I began by selecting a study/research topic with Gemini, based on a few areas I’m interested in. I shared a LinkedIn post about it, so feel free to check that out if you’re curious.

Antigravity Experiment

I had planned to spend the first two days digging into some fairly complex technology mash‑ups. However, Antigravity surprised me: by noon I had already achieved what I set out to do, so I expanded my research into something “fun”—developing a very simple game.

Prompt Engineering

I consulted ChatGPT to refine the scenario and used Gemini to craft a solid starting prompt. Those prompts were fed into Agent Manager, and the results were impressive: the system got a basic prototype up and running (albeit very simple) in under three hours.

Game Progress

Even with limited time, I managed to wire together several game scenes:

  • World scene – I can move around a randomly generated world of size n × m.
  • Tile visibility – Only adjacent tiles are visible, reminiscent of Civilization.
  • Dialogue – I can simulate conversations with characters.
  • Combat – I can pretend I’m in battle, using cards to fight monsters.
  • World rebuild trigger – A mechanism to force the world to regenerate, which is crucial for my intended gameplay loop.

Getting all of this on the first day far exceeded my expectations, and it’s all thanks to Antigravity.

Conclusion

If you haven’t tried Antigravity yet, I strongly recommend checking it out. It turned a task that could take weeks—or even months—into a matter of hours.

Screencast

Here’s a short video demonstrating the result:

https://youtube.com/shorts/I2h6ohO9jHE

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