Right now, it's mostly some straightforward monstergirl/boy content, both top and bottom. Pregnancy is in the works, and there is an egg-insertion scene.
Planned is a bit harder to say, as it depends on what I feel like for any given update. Very likely adds: BDSM stuff, pet play, submission, and transformation. Any topic that is very niche will be clearly tagged in-game, so that you can avoid it.
Some stuff that will NOT be included: scat, diapers, force, gore, and depictions of violence. And obviously, anything violating the Patreon, Itch, or Discord Terms of Service will never be added.