itch.io

Dating sims (or dating simulations) are a video game subgenre of simulation games, usually Japanese, with romantic elements. The most common objective of dating sims is to date, usually choosing from among several characters, and to achieve a romantic relationship.

Your choices throughout the game will determine which ending you get. Likewise, your ending will vary with your choices.

An otome game is a story based video game that is targeted towards the female market. Generally one of the goals, besides the main plot goal, is to develop a romantic relationship between the female player character and one of several male or female characters.

http://en.wikipedia.org/wiki/Otome_game