Undertale is an indie role playing game that was created by Toby Fox and released on September 15, 2015. The game is played on desktop and is sold for $9.99 on the game's website as well as Steam.
Undertale has been ranked #37 on metacritic's Best PC Video Games of all Time with a user score of 7.9, and has won multiple awards an nominations such as Game of the Year from The Jimquisition and Zero Punctuation, as well as Best PC Game from Destructoid and IGN, among others 
Undertale is a game where you play as a human child that has fallen into the underground – a place where monsters have gone to live after being banished away from the human world. The game tasks you with wandering through the underground, trying to reach King Asgore Dreemurr, the monster that will supposedly send you back home to the human world. Throughout your journey you meet many monsters, and you can choose to either be a True Pacifist and spare them, or fight them and play a Genocide Route.