Game title: Undertale
The game tells the tale of an ancient war between monsters and humans, which the former lost. Afterwards, they were banished underground and quickly forgotten about. Many years later, a child, walking in the mountains, falls into a hole and finds himself in a monster world, where he now has to survive and find his way home. He will meet many enemies who want to attack him. However, there are also many good monsters who will try to help him find his way home. The game has several endings.