Originally posted by Ataxio:

They did dial back the spawn rates of swamp crypts it seems. I noticed a significant decrease, almost 75%, for unexplored swamps on my home map. Uncovered areas will have something like 10 to 15 crypts, new areas have like 2 or 3. Pretty brutal in a not so fun way.

That's.. not really enough data to say they nerfed crypt spawns. That happens anyway. And, going by the world gen, on average new worlds have just as many crypts. EDIT: I'm wrong.