Last One Standing Academy

Five hundred years remain before humanity reaches its new home planet. With resources running out, sacrifices are necessary. To control the population, the ship uses academics as a ruthless selection system. Students aged seven to eighteen are enrolled in the academy, cut off from all contact with the outside.

You play as a student in their final year at the last school remaining in the universe. One year of exams awaits. Pass them all and graduate… or fail and lose your right to live.

[From Steam]