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PICO-8 is a fantasy console

https://www.lexaloffle.com/pico-8.php

PICO-8 is a fantasy console for making, sharing and playing tiny games and other computer programs.

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I've been very partial to the open source fantasy console, https://tic80.com/

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I love the idea and execution of the PICO-8. The project pops into my head fairly often.