Up5k_basic
github.com
github.com
Then I think that I'd be the only one that would want to play that, and shelve the idea.
Then I see something about people being interested in 6502 stuff, and think that maybe I'm not so crazy...
Although it would be interesting how one could program a narrative into that, if the player starts out without any prior programming knowledge. First task is simple memory access, then looping is required etc.
It is a lot of fun to hack on this kind of systems, and with simple shields available online you don't even have to solder if you don't want to.
[0] https://www.retrobrewcomputers.org/doku.php?id=boards:ecb:mi...