Games like Palais de Royale
Moon Observatory Melanie
Moon Observatory is a fantasy otome game series created by Batensan. In the universe of MO, there are thirteen worlds named after months, with one final nameless world. Each world has a Magician, a half-immortal being who watches over their world's residents.
Dr. Rin ni Kiitemite! Koi no Happy Four Season
A dating sim where you get put in the shoes of Meirin and can go for four different boys.
Doubt: Anata wa Dark na Uso ga Suki?
An otome game by Voltage Inc. It is currently available in Japanese.
Seduce Me the Otome
A romantic comedy visual novel centered around a girl named Mika Anderson, who gets entangled in the affairs of incubi.
Kaitou Apricot
Kaitou Apricot is a visual novel by Takuyo.
Ore-sama Kingdom: Koi mo Manga mo Debut wo Mezase! Doki-doki Love Lesson
Ore-sama Kingdom: Koi mo Manga mo Debut o Mezase! Doki Doki Love Lesson is a visual novel for the Nintendo DS.
Palais de Carnaval
A fandisc for Palais de Reine for PC.
Aru Kanrinin no Koi: Spring + Summer
The original Aru Kanrinin no Koi game released in 2011 for PC.
Pinky Distortion
Pinky Distortion is a visual novel game for iOS.
Otometeki Koi Kakumei Love Revo!!
Otometeki Koi Kakumei Love Revo is a otome game for PS2.