Summertime Saga is a visual novel dating simulation game developed and published by DarkCookie. The game follows the story of a young man who must navigate through his daily life while also uncovering the mystery. The game is set in a small town during the summer, and the player must interact with various characters and complete tasks to progress the story. The game features a large cast of characters, each with their own unique personality and storylines. The player can build relationships with these characters by completing quests and making choices that affect the game's outcome. The game also includes a variety of mini-games and activities, such as fishing, cooking, and card games, to keep the gameplay engaging. One of the main features of Summertime Saga is its adult content, including nudity and sexual scenes.