This game is rated ESRB: Teen for Violence, Suggestive Themes and Blood.
Age was exploring a portal in the Frontier Shelter when he was suddenly moved to what appears to be a laboratory by an unknown force. It seems to be a laboratory of the Frontier meant for testing creatures, filled with many devices to measure and record combat capabilities and strengthen their shortcomings. All experimental subjects created from these repeated experiments are beings who seek perfection, created solely from data.