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Imperium
Image: Petroff Games

Imperium

Petroff GamesReleased

  • Windows
  • macOS
  • Linux

By Hitesh K ยท 6 November 2026

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Summary

Imperium is a single-player, turn-based 4X space strategy game from Petroff Games, released on Steam for Windows, macOS and Linux on November 2, 2026, with a free demo. Every turn covers one year of game time. Starting from a single home planet, you expand into an interstellar empire, building up each colony's surface tile by tile, working through a research web of 68 technologies and designing warships from 80 components across five hull sizes. The computer-run empires pursue their own goals, forming treaties, spying and fighting wars among themselves as well as with you. There are 21 playable species, a Galactic Senate you can run for, and six ways to win, from conquest to a galaxy-wide peace.

How it was made

How it was made: Imperium is made by a solo developer, Daniel of Petroff Games. In the launch post on Steam, he wrote that Claude, Anthropic's AI model, "writes the code under my design and direction," that the art and music were made with AI tools, and that the translations are AI-made. The same post thanks collaborators for design and interface work, the original ruleset and AI behavior, writing, and testing. The game's AI disclosure on Steam gives more detail: Midjourney and ChatGPT generated the visual art, from planet surfaces and ships to interface and store images, which was then edited and composited by hand in Photoshop, including with Photoshop's own AI tools. Suno made the music and ElevenLabs the sound effects. The disclosure also says the rival empires run on traditional algorithmic AI, not generative AI.

Imperium costs $24.99, with 10% off until November 16. It ships in English, Russian, Simplified Chinese and Japanese, plus a beta Brazilian Portuguese translation, and includes built-in modding tools. Details here come from the developer's Steam page, posts and website.

Topics:Coding agentsAI in game development

Sources

Details come from the developer's own posts and pages credited below.

  1. Steam: Imperium store page and AI Generated Content Disclosure (developer's own page)
  2. Petroff Games: "Imperium is out now on Steam" (developer's launch post on Steam)
  3. Petroff Ltd: Imperium official game page (developer's website)

Image: Petroff Games

Written in our own words; quotes are marked and credited. How we report

Game details

Developer
Petroff Games
Platforms
Windows, macOS, Linux
Genre
Strategy, Simulation, Indie
Status
Released
Release
November 2, 2026
Price
$24.99

Made with AI

  • Claude
  • Midjourney
  • ChatGPT
  • Suno
  • ElevenLabs

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