Popular games built on game engine Real Live

Clannad follows the life of Tomoya Okazaki, a high school delinquent who meets many people in his last year at school, including five girls, and helps resolve their individual problems. The gameplay of Clannad follows a branching plot line which offers pre-determined scenarios with courses of interaction, and focuses on the appeal of the five female main characters by the player character. The game was ranked as the best-selling PC game sold in Japan for the time of its release, and charted in the national top 50 several more times afterwards.

Little Busters! is a Japanese visual novel developed by Key. The story follows the life of Riki Naoe, a high school student who has been a member of a group of friends named the Little Busters since childhood. Riki brings multiple girls at his school into the Little Busters to have enough people to play a baseball game. The game is rated for all ages in Japan, but a version containing adult content named Little Busters! Ecstasy exists as well.

Planetarian: The Reverie of a Little Planet is a Japanese post-apocalyptic visual novel developed by Key and is rated for all ages. The story centers on a middle-aged man who comes across a malfunctioning robot in a dead city. The man, known simply as "the junker", stays with this robot for a time and attempts to fix the projector of the planetarium where the story takes place.

Planetarian: Snow Globe is a kinetic novel based on a short light novel by the same name that occurs before the events of Planetarian: The Reverie of a Little Planet.

Air is a Japanese visual novel developed by Key that follows the story of the life of Yukito Kunisaki, a traveling showman searching for the "girl in the sky". He arrives in a quiet, seaside town where he meets three girls, one of whom is the key to the end of his journey. The gameplay in Air follows a branching plot line that offers pre-determined scenarios with courses of interaction and focuses on the appeal of the three female main characters by the player character.

Tomoyo After: It's a Wonderful Life is a Japanese adult visual novel developed by Key. Key later released versions of Tomoyo After without the erotic content. The story follows the lives of Tomoya Okazaki, a young man who recently graduated from high school, and his close friend Tomoyo Sakagami as they start to see more of each other in a romantic relationship.

An expanded port of Kud Wafter for consoles, which removes the sexual content and adds additional story events and visuals.