Some time ago, I saw someone mention making a monstrum when asked about creating monster races. Supposedly it is a PC that is the child of a human and a monster, or something like that. I was wondering where I can find the rules for doing so. For example, a Half Yuuki-Onna. It's like a half-elf, but instead of an elf, the non-human parent was a monster. The idea is that some of the monster's abilities would be passed down to the offspring but not all and in a weaker variation.

This is not a duplicate of this question about making new playable races, because that post is asking about making new races in general, not specifically tailored to monster-human offspring like mine is. If this is a duplicate then please explain to me where the overlap is located because for the life of me I can't see it. In the linked post I see creating a monster race and advance race guidelines (linked twice) neither of which answer my question.

  • \$\begingroup\$ Those are fusions not actual hybrid offspring. \$\endgroup\$ – Mage in the Barrel Sep 8 at 19:27
  • 2
    \$\begingroup\$ @NeilSlater Why don't you make that an answer? I mean, Exactly what you want doesn't exist, but close to it is this process sounds like an adequate answer to me. \$\endgroup\$ – Hey I Can Chan Sep 9 at 2:02
  • \$\begingroup\$ A new race is a new race. It doesn't matter that the background is a fusion. \$\endgroup\$ – NautArch Sep 9 at 16:03

You might want to look at Templates; these give any creature the abilities of a monster(type). for the Yukki-onna, i'd think the Ghost is the most appropriate.

The rulebook recommends a player with this template to be 2 class levels behind the rest of the party (so this character will be level 1, and the rest of the party should be around level 3)


The person I saw mention this concept used the guidelines for creating a Monstorin (from Mystical: Kingdom of Monsters by Northwinter Press), but reflavored it to be the child of a human and a monster.

I actually found the guy; he basically said to follow those guidelines, but to use primarily the traits from the non-monster race and add one or two from the monster race, lowering them in strength if necessary.


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