Starship Operators, Mugen no Ryvius Recommendations
Another sci-fi story set in a futuristic society. Students aboard a ship end up having to assume control of it, and although there are some different spins on it, there are staggering amounts of similarities. I think if you enjoy one you'll enjoy the other. Because it is a longer series than Starship Operators they take the time to deal with the nitty gritty like food and water problems and other aspects of life that would be difficult to organize on your own with a bunch of amateurs.
Basically what the other recommendation between these two said. All in all, Starship Operators is kind of like Infinite Ryvius Lite.
Young ones, on a spaceship, fighting to survive in an hostile universe
Both are scifi anime about a group of novice starship pilots as they're labelled as terrorists, rebels, soldiers, etc. fighting against impossible odds as the universe watches.