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Imperium, a turn-based space 4X written by Claude Code

After seven months and about 2,500 commits, the team's game reached Steam Next Fest, with Claude working through parallel sessions and an MCP bridge into the running game.

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Credits

  • Reddit poster keaslenyt Source ↗

Earliest dated source: 18 Oct 2026

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Sources

From a short post by the maker, so the details are as they tell them.

  • Reddit: 7+ months of Claude Code on one game: our space 4X is in Steam Next FestForum threadreddit.com
    Reddit poster: keaslenytPosted 18 Oct 2026

    If it disappears: archived copy of Reddit: 7+ months of Claude Code on one game: our space 4X is in Steam Next Fest (opens in a new tab)

  • The project: store.steampowered.comBlog or write-upstore.steampowered.com

    Linked in the post.

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Prompt & Solder

An independent community project. Not affiliated with Anthropic.

What this is. Real projects where people used Claude to build, fix, port, revive or take apart something, from jailbroken Kindles to rebuilt DOS games, plus the times it went badly wrong. Every build links to where it was shared, and every source is listed here.

How far to trust it. We summarise what people reported and say what each build rests on: a full write-up with code, a short post, or a passing comment. We haven't tested them ourselves. Photos are shown from the original sources with credit. Only modify hardware you own, and back up first.

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