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Image: reddit.com · Video still: we got a whole neural scan of a fly and we wont run DOOM on it? impossble-

Partly Proof shown

A fruit fly connectome wired up to play DOOM

A simulated fruit fly brain wiring map drives a bot through the first level of DOOM, reaching the exit 57% of the time, built with Claude.

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Credits

  • Reddit poster Bright-Leg8276 Source ↗
  • Repository account Aur1ety Source ↗

Earliest dated source: 15 Sept 2026

Code ↗

The full story

The maker connected a fruit fly brain wiring map (the MaleCNS scan, which the post stresses is a wiring map, not a living brain) to DOOM. It loads 138,968 neurons and 4.6 million synapses into a simulation without changing any connection. An eye model turns each game frame into signals for the fly's motion-detecting cells, and a small trained layer reads 10,511 simulated neurons and picks one of 8 keys.

A scripted bot that can see the map was used to train it. On 100 runs from unseen starting spots it reaches the exit of the first level 57% of the time. An earlier fruit fly DOOM project, by its own README, never got past survival tests in a small arena. The maker says the code was written with Claude.

How it was done

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Sources

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

  • Reddit: we got a whole neural scan of a fly and we wont run DOOM on it? impossble-Forum threadreddit.com
    Reddit poster: Bright-Leg8276Posted 15 Sept 2026

    The maker's post on r/ClaudeCode.

    If it disappears: archived copy of Reddit: we got a whole neural scan of a fly and we wont run DOOM on it? impossble- (opens in a new tab)

  • The code: github.comCode or repositorygithub.com
    Repository account: Aur1ety

    The project on GitHub.

  • Reddit: So yh i got the fruit fly to play DOOM (proper level this time)Forum threadDeleted on Redditreddit.com

    The poster has deleted it, but the original is still readable (it can take a few seconds to load): archived copy of Reddit: So yh i got the fruit fly to play DOOM (proper level this time) (opens in a new tab)

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