[d4rti]

There is the vim adventures site https://vim-adventures.com/ but it doesn’t sound quite like what you are looking for.

[filchermcurr]

It's also pretty expensive. $30 for 6 months, I believe. At least a year would be a somewhat more attractive value proposition. But they must be doing fine with that pricing, it's been around forever. So good for them!

[lampshades]

This is how I learned Vim a decade ago. Highly recommend.