I seem to do this a lot - I’ll find a game whose setting I really like, but dislike the ruleset it uses, so I end up converting it over to the ruleset I prefer (usually Cypher System). I’ve learned that to some people, this is blasphemy of the highest order, which is surprising. I still do it, though. 😬
Yeah they both are built around the classic D&D gameplay loop of exploring and dungeon crawling. I run my own adventures rather than using purchased modules so I don’t have to worry about converting monster stats and stuff. But Shadowdark converts very easily to old D&D versions, it would be straight forward to run any old pre-3rd edition D&D modules in it.
That sounds really cool. I’ll have to check that out. Thanks!