Ceiba is a single-player adventure, simulation, detective/mystery, flight/vehicle sim, space sim, interactive fiction, and visual novel game in which players explore a richly detailed science fiction universe through a branching narrative that emphasizes choices and multiple endings. In this game, Ein, a well-meaning member of an expedition sent by humanity to distant planets, attempts to develop a romantic relationship with a cold but attractive co-worker amidst the backdrop of alien ruins and mysterious messages. It stands out with its hand-drawn, colorful art style, futuristic themes, and complex gameplay elements that include detective work, exploration, and decision-making that significantly influence the story's outcome, offering a premium experience with DLC options and non-linear storytelling.