Looking for a way to make the game Undertale fullscreen and elevate your gaming experience? Undertale is a mini-bullet hell 2D RPG that was released in 2015, and is still enjoyed by players worldwide. Published by Toby Fox, the game involves controlling the main character through the underground, navigating their way through monsters who can be defeated or avoided. The protagonist of the game is a child, and your decisions of sparing or killing the monsters affect the outcome of the game, so you need to make your choices wisely. In this guide, we will take you through how to make Undertale fullscreen.
In the top-down perspective of the game, you will be able to see your character who has fallen into the underground world, filled with caves and towns that have puzzles for you to solve. As you meet characters and interact with them, you will find objectives that you need to complete to progress further into the story. Morality plays a significant role in the game, as you can kill your demons or choose to run away from them – and there’s also the option of befriending them. Whatever your choice may be, the usually windowed game can be enjoyed better in fullscreen. Let’s find out how you can make Undertale fullscreen.
How to Play Undertale Fullscreen Guide

The 2D game Undertale is usually played in the windowed mode, where most of your screen isn’t being used. This might bother some players as they don’t want to be distracted by the empty space on their screen, and might not give them the ultimate gaming experience. Fortunately, there is a way to make the game Undertale fullscreen, so you can get the most out of your experience, as well as make use of your larger screen.