It turned out to be just a dream. This is a gamejam work developed by a team of four people within ten days. It is a third-person 3D space adventure game. The theme of the game development is “dreams”, so the game’s background is set in a space adventure within a dream. Its core gameplay involves simulating jumping and flying under the gravitational force of planets. However, please note that all of this is just a child’s dream, so the gravitational simulation is not rigorous. It is simply achieved by interpolating the direction of gravity towards the center of the planet closest to the player and updating the gravitational scalar. As a result, there may be situations where a small planet has a stronger attracting ability than a larger planet with a greater radius. The game includes seven playable levels. Although the difficulty has been adjusted and there are players who can operate smoothly on their first playthrough, for players who are proficient in operating the game, the difficulty may already be quite low. However, some players still find it difficult to get started and may get stuck in the first three levels. This is a problem caused by the author’s lack of experience in game design, and we apologize for that. Please pay attention to the tutorial text in the first level and the golden landmark hints within the levels.