Yeah I don't have the patience to slog through all of legends mode in every single world. It's good to know I won't be fighting a losing battle, but like Quaksna said, this sorta thing isn't very consistent in vanilla and I'd like to do anything I can to maximize it.
For clarity, this would consist entirely of all-new races, with a whole bunch of little civs designed to maximize the odds of their citizens dispersing into the main civ. It's a total overhaul sorta mod, so I don't need to worry about vanilla civs getting in the way.
DfHack + Legends Viewer makes searching for good world easier, but the problem still stands.
A big factor in this seems to be the updated necromancers, spreading of evil biomes and such. There's a lot more of them, and they seem to render sites unusable. Wars and conquering of sites also seem to mess things up. I had a small world where I could start as adventurer from
one site only, a fort in a corner of the map (Even after I turned off the natural breaching of HFS).
The new update kinda makes the worlds post-apocalyptic (sometimes, it's random), my first game in 47.01 was in a barren world with scarce of normal races, some extinct, nearly all fortresses filled with clowns, experiments made up the populations of whole civilization... It's not bad, but different. I'll remember this update as a great milestone
.
If you make a total conversion mod, that's cool, but I am afraid you can't avoid this race integration stuff. Unless you take away intelligent races that can join civilizations (animal men, gorlaks etc.) and replace them as well, somehow limit them...
When considering civilizations, you must inevitably take into considerations sites. And sites, again, are hardcoded, it's very difficult to get around lot of this stuff. You have to be creative. Good luck!