What the developer confirmed about Raven mutations
Underkeep raven mutations are intended to make the race fun and unpredictable, rather than a perfectly controlled min-max choice. The developer highlighted them in the May 30, 2026 update, alongside the addition of race traits. That confirms the concept, but it does not provide a list of mutation names or effects.
In the official Closer to the Depths announcement, the developer explains that this unpredictability may not appeal to players seeking tightly optimized characters. That is useful guidance about the kind of experience Raven is meant to offer.
Decide whether that uncertainty suits your party
If experimenting with unusual outcomes is part of the appeal, Raven's announced design may suit you. If you want every part of a character's setup to be predictable, the developer explicitly suggests that Raven may not be the right fit.
Neither preference proves that Raven is stronger or weaker than another race. The announcement describes a design goal, not a controlled damage comparison. Do not use it as evidence for a guaranteed best class pairing.
What the announcement does not explain
The update does not specify individual mutation effects, their probabilities, when they occur, or how to replace them. It also says direct race-trait selection was not planned at that time. That is not a confirmed mutation-selection menu or a reliable reroll procedure.
Read the actual race and trait descriptions in the version you play before planning around a specific effect. The announcement describes development since the demo; its features should not automatically be assumed present in an older public demo build.
FAQ
Are Raven mutations confirmed for Underkeep?
Yes. The developer explicitly discusses them in the May 30, 2026 announcement.
Can I choose a particular mutation?
The cited update does not establish a method for choosing one. It says direct race-trait selection was not planned at that time.
Is there a verified list of mutation effects and chances here?
No. Those details are not provided by the supplied announcement, so this guide does not invent them.