@DeNoven

Thanks for testing

Yeah it's not that easy to test bcs something like traders have mindistances which Basicly doesn't allow for more spawns so Mhh

Using 300% spawnchance; Yellow = surface ruin, blue = underground, and swirls are underground translocators.
Primary conclusion seems to be that structure spawns are mostly restricted by terrain generation first, but does mean you get the occasional high density groupings.
At 300% the number of underground pockets is massively increased (though a lot of these are just pockets with a mess of cobble/aged wood jumbled in them) Like this

It's not too bad (also, not a properly full survey either, the region I searched was just by zooming through w/ noclip, and accounts for about 500 x 700 for most of the markers)

Those sound ideal to me. If you get it out, I'll do some quick testing and give a shout back 

DeNoven

What spawnchances do you want?

I would say 150% and 200% and 300%

Wonderful! Great work NiclAss :D 

DeNoven

Ye np will do :P

Sorry to cut across the grain - but could you make versions to increase the spawn chances for structures and villages?