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For the lazy, here's a link https://www.nandgame.com/

When I played through this last year it was surprising how much came back to me from the courses I took in college, and haven't touched at all in 20 years.

i havent been able to clear level 1 of nandgame , i dont know how to make that switch work on all 4 truth tables

This immediately made me think of nand2tetris.org, but as a game. Is that what NANDGame is?

Yes, pretty much, but stopping at the cpu level (about the first half of the course).

Or Silicon Zeroes, or MHRD, or a bunch of other games that do the same thing.