A good 3D game must meet many criteria, which are often very dynamic and constantly changing. Because of this variability, they cannot be clearly listed.
In general, people should like the game: for this you need to carefully analyze their responses to existing games, fix their features, and record positive and negative comments.
Also, the game should correspond to modern gaming trends. The specifics of game design change every year, so the release of a game with an outdated design immediately catches players’ eye. The same goes for creating graphics: the trend for realism and immersiveness is gaining momentum, so stylized games require a careful approach and a suitable presentation.