Maou ga Ochiru Hi

Odin's prophecy gives humanity only a single year before the Demon King's return. Humanity's response: train up a hero who can defeat him and save the world. In this traditional RPG, players take on the role of the hero in that fateful year. Given a limited amount of time, they must pick their moves carefully. There are 15 different unique allies the player can recruit and a large number of different events they can encounter, and the player's actions determine the outcome of the story. Because of the limited slice of the game players can experience on each playthrough, they're encouraged to replay many times to see different possible outcomes. Players who are persistent enough are rewarded with the chance to see the true ending.