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Show HN: TinyCity – A tiny city SIM for MicroPython (Thumby micro console)

142 pointsby inflam5201/15/202626 commentsview on HN

Comments

allanrbo01/15/2026

SIM=subscriber identity module. sim=simulator. :-)

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_joel01/15/2026

I hope it "Reticulates Tiny Splines" (good work btw)

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gaudystead01/15/2026

I literally JUST bought a Thumby out of a vending machine this past weekend, so this post feels a bit serendipitous for me. Thanks for sharing, and I'll have to check this out!

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JKCalhoun01/15/2026

Is it using the 1.3-inch monochrome OLED display of the Arduboy or something smaller? (Guessing the 72 × 40 display of the Thumby?)

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Tiberium01/15/2026

Small bug: the sim seems to double count residential population for taxes, industrial pop gets ignored. The duplicate logic seems to exist in UI but it's correct there.

Also I wonder if all the repetition could be reduced, or would it affect performance on MicroPython?

https://github.com/chrisdiana/TinyCity/blob/88d07cf98f13bb73...

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coldcity_again01/15/2026

Looks super cool, nice job!

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hei-lima01/15/2026

Really cool!

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bowlcutWiz01/15/2026

looks awesome! can't wait to try the online version :)

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tinfoilhatter01/15/2026

Looks neat! Great job!

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mcsolid01/15/2026

very cool!