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Two video games have been released based on the anime series, both named "Uchuu no Stellvia". The PlayStation 2 game was released on the 22 January 2004. The Game Boy Advance game was released on the 23 April 2004. Both games are adventure dating simulations though they do vary in gameplay.
In the PlayStation 2 game, the player assumes the role of a new student who has enrolled at the Stellvia Space Station Foundation. Each day he assigns various commands on what to do such as studying or resting in the same type of gameplay that Tokimeki Memorial has except for weekends since there is no school then. At the weekends he may invite a character on a date. There are various events to be seen in the game and there are 10 multiple endings. The game resembles the aforementioned Tokimeki Memorial game series in many ways (though in Tokimeki Memorial the player only assigns various commands for the coming week and not for each day).
The Game Boy Advance game is different from the PlayStation 2 game in terms of gameplay and plays a lot like the famous Sotsugyou series of games also known as Graduation in the west. The main difference in this game as opposed to the PlayStation 2 game is that the player assumes the role of a new teacher instead of a student in the PS2 game. He must teach the four main heroines (Ayaka and Rinna also come into the game later on as his students) various subjects so that they are prepared for the Great Mission. The game is like Graduation in that the player has to balance out the various girl's stats and must not neglect them since in this case, they start to skip classes and the game can end. Throughout the classes the player character must ask the girl's various questions on the corresponding subject. After a question a number of things can happen. A girl may put up her hand to answer the question, the player can also choose one of the girls to answer or can answer the question themselves. The player may also individually teach a specific girl on subjects. Various events can be seen with the various characters from the series at lunchtime or after school.