Undertale

Undertale is a role-playing game developed independently by Toby Fox.

It was announced for release on the Nintendo Switch during the March 8th Nintendo Direct event, but there was no official launch date given.

Plot
Long ago, two races ruled over the Earth: Humans and Monsters. One day, a war broke out between the two races and after a long series of battle, the humans were victorious. The greatest of their magicians confined the monsters to the Underground with a magic barrier. However, this barrier is not a perfect barrier.

Many years after the war, in 201X, a human child climbs Mount Ebott for their own mysterious reason. It is said that those who climb the mountain never return. The child discovers an enormous hole in the mountain and falls in. After that, the story begins.

The protagonist starts off their adventure in the Ruins and soon meets Flowey, a sentient flower who attempts to kill the protagonist for his own amusement. He is thwarted by a motherly monster named Toriel, who teaches the child how to solve puzzles and resolve conflicts in the Underground. After a boss fight with her, she allows the child to exit the Ruins.