Welcome to the underground! Undertale is a charmingly dangerous RPG where you navigate a world filled with monsters, solve puzzles, and make choices that truly matter. You'll be charming your way through Toriel's initial embrace, tackling Papyrus's notorious puzzles, and deciding the fate of every monster you meet.
This guide is your ultimate companion, covering everything you need to conquer this beloved game. We'll help you survive every boss fight, master every puzzle, and explore the secrets hidden within the Ruins and beyond. Whether you're aiming for a Pacifist ending or exploring other paths, we've got the detailed walkthroughs and tips to ensure you don't miss a thing.
Obtaining and Launching the Game
Learn how to get Undertale on PC for $10 via Steam or the official website. Discover its minimal system requirements.
Undertale is currently a PC-exclusive game and is not available on any consoles. You can download the game from Steam or directly from the official website, undertale.com. The current price for Undertale is US$10. The game does not require a powerful PC to run, as its 2D, retro style means graphics are not a demanding concern.
- For more detailed specifications, check the game's Steam page or its official website.
Avoid Spoilers
Undertale is story-intensive. Play blind and avoid spoilers by staying off forums and wikis until you finish an ending.
To fully enjoy Undertale, you should spoil as little of the game's plot as possible. Play it without any significant prior knowledge of the game. Avoid visiting Undertale forums, Wikis, or other related websites until you finish at least one of the game's endings. If you would like to see the endings anyway, you should jump ahead to the end of this guide.
Tips:
- Avoid visiting Undertale forums, Wikis, or other related websites until you finish at least one of the game's endings.
- Play Undertale
Endings
Undertale has multiple endings determined by your actions, especially character kills. Two main endings are Pacifist and Genocide (No Mercy).
Undertale has many different endings that occur based on your actions in the game, particularly based on which characters you kill. The game has two main endings, labelled by fans as the Pacifist ending and the Genocide (or No Mercy) ending.
Warning: It is highly recommended NOT to attempt a Genocide run on your first playthrough. For more information on the requirements for these endings and consequences of these endings, see the introduction sections to each ending's section of this guide. This information is separated to prevent spoilers.
- Play your first playthrough in a way that is most enjoyable for you.
- The Pacifist ending is treated as an extension of the neutral endings.
- The Genocide run is treated as an entirely separate experience and receives a separate walkthrough.
Take Your Time
Undertale can take 6-12 hours to complete. Discover secrets by talking to NPCs and examining objects.
Undertale can take anywhere from 6-12 hours to complete, depending on the route you choose. It is highly recommended to take your time and enjoy the many things this game offers.
The game is filled with secrets. You should speak to all the non-player characters (NPCs) and examine as many objects as you can. Immerse yourself in the setting and keep your eyes peeled. You might discover something new.
- Talk to every NPC (non-player character — anyone the game controls, not you) you encounter.
- Examine everything you can interact with.
- Pay attention to your surroundings to find hidden elements.
- Consider different routes to experience the full game length of 6-12 hours.
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