I gotta ask, because I find this seriously amusing. Siren makes games where you can toggle incest on/off depending on how you name the characters or what "role" you pick for them. Patreon, last I checked, does not like incest content. Something about 'incorrect fantasies' or some crap.
So like, is Patreon really this dumb? Siren's games go beyond just naming a character "Mom." If you do that the game actively changes dialog and how characters interact with each other. "Mommy" is used and "Sis" and the "Aunt" will call your mother her sister and so on, so on. Incest is built into the game. There are scripts and flags and text that deal with incest content. It isn't just giving a character a name. Like wow, Patreon is stupid AF if you can get all that past them.
When indeed brother, when indeed.
Siren said that after this Christmas update (I hate holiday updates, sue me) the next one would commence the sister route. They also claim the game would be finished by the end of 2022 but now that the $2000 per month goal has been reached they are looking to expand beyond the home and who knows how that will affect route progression. 'Town Chores here we cum' I guess.