While all three terms are often used interchangeably (by me at least), my definitions overlap more like rectangles and squares: all the otome games I’ve played are visual novels, but not all are dating sims.
As a quick peek at Wikipedia shows us, otome games are literally “girl games.” They’re aimed at a female audience and are evidently a fairly new genre.
It takes place in an urban environment named Urbzville.
Shin Megami Tensei: Persona 4 is a role-playing game developed and published by Atlus for Sony's Play Station 2, and chronologically the fifth installment in the Shin Megami Tensei: Persona series.Visual novels tend to be extremely story-driven with the outcomes determined by the choices you make along a branching story route.Dating sims often have you scheduling your character’s time in order to raise specific stats by doing certain activities.Plus, although I sneer at my friend’s romance novels, I really have no room to talk here in my glass house.[Ed.: anyone who says they don’t live in a pink-tinted glass house of smut is lying or deluded, or perhaps just lives a sad, sad life (unless you’re asexual, you’re perfect and we heart you too)—official G-vesc position on romance ♥] Otome games are also sometimes called dating sims and generally fall into the visual novel category.