Please add this game and my life is yours, I was surprised it wasn't on here already so I am here to request it.
Here is download:
https://www.ryuugames.com/eng-incubus-quest-uncensored/
It potentially needs a patch from the Kagura games site to work properly(according to Kagura Games discord, the release date version had issues and was locked in a "Safe mode" with no NSFW), So in case it does here's a link to that:
https://www.kaguragames.com/product/incubus-quest-patch/