At what point should I switch systems?
So for clarification: I've been busy writing an adventure/setting for over two years now. It started out small as a one-time sesh thing for friends, and just grew bigger and bigger. To the point where I'm determined to eventually publish this as a physical book. Not there yet, but that's the idea.
I started out using another ttrpg named 'Durf', also a very rules light OSR type of game. When I learned and read more about Mörk Borg, I transitioned the whole thing to that. Which is where we're at now. But I've realised that I kind of want player characters to have a longer, meaningful journey of discovery. Which kind of juxtaposes the whole 'your character is pretty fragile and is probably gonna die at some point, and if so, just roll another one'-idea. The 'solution' I came up with was to give the PCs (and starting classes) higher HP.
But now I'm left wondering, how far can you take things, or change things from the original, before you should just say: maybe this system isn't fit for what I'm trying to make? So I'm once again considering what to do, perhaps switch systems again? Or perhaps make the whole adventure system-agnostic?
Not sure if this makes any sense, but I was wondering if anyone had any opinions about it!