Versions

• Minecraft: 1.12.2
• Forge: 1.12.2 - 14.23.3.2655
• Vampirism: 1.4.1

Dont spawn vampires in the world on my server, but is possible to summon than using commands or spawn eggs.

Mods in using:

Reproduce Steps

Additional Information

Do Zombies spawn?

I've been having this same issue as well, for the life of me I can't find a single vampire no matter where i look. Zombies spawn in massive numbers (I'm running the zombie awareness mod) but still not a single vampire. I believe it might have something to do with Mo'creatures but im not 100% sure just yet

Yeah, after removing Mo' creatures, and it's required Custom Mob Spawner, I'm seeing vampires spawn all over the place.

Thx, I will look into it.

I did a bit of extra research, it turns out it's just the custom mob spawner that's stopping vampires from spawning, idk if that helps or not

Thanks for testing that.
I tried it myself now and can confirm the issue. Somehow Custom Mob Spawner takes over the spawn process but does not see a reason to spawn vampires.
Unfortunately the mod is not Open Source, so it is difficult figuring out the exact reason. Maybe you can file a bug report at their end so they can help (I think the issue itself has to be fixed on their side anyway).

In the meantime I found a workaround:
Go to your config directory and look for the CustomSpawner directory. In there you should find a overworld folder with a Creatures subfolder. Edit the DE.cfg file and look for vampire and vampire baron. Change canSpawn to true and the type to MONSTER.
With that I was able to see some vampires spawn. However, I do not know if this is reset on certain occasions.

I'm glad I could help! thanks for finding that workaround, I tried messing with those settings myself at one point, but I didn't see a change. Might want to say something about this issue in a mod compatibility section of your mod, so people don't continue to report this problem.