Undertale

UNDERTALE

Developers
	tobyfox
Engines
	GameMaker
Release dates
Windows	September 15, 2015
macOS (OS X)	September 15, 2015
Linux	July 17, 2016

Undertale
Undertale	2015
Deltarune	2018

Key points

Menus layout and settings may vary according to real world time and game save. Article contains minor spoilers.

Frame rate is capped at 30 FPS.

General information

Official website

Undertale Wiki

GOG.com Community Discussions

GOG.com Support Page

Steam Community Discussions

Availability

Source	DRM	Notes	Keys	OS
Official website		A demo is available here.
GOG.com
Humble Store
Microsoft Store		Xbox Game Pass for PC
Steam		Game can be installed anywhere after initial installation.

Game data

Configuration file(s) location

System	Location
Windows	%LOCALAPPDATA%\UNDERTALE\
Microsoft Store
macOS (OS X)	~/Library/Application Support/com.tobyfox.undertale/
Linux	$HOME/.config/UNDERTALE_linux_steamver/ GOG $HOME/.config/UNDERTALE_linux/
Steam	<Steam-folder>/userdata/<user-id>/391540/remote/

This game does not follow the XDG Base Directory Specification on Linux.

Save game data location

System	Location
Windows	%LOCALAPPDATA%\UNDERTALE\
Microsoft Store
macOS (OS X)	~/Library/Application Support/com.tobyfox.undertale/
Linux	$HOME/.config/UNDERTALE_linux_steamver/ GOG $HOME/.config/UNDERTALE_linux/
Steam	<Steam-folder>/userdata/<user-id>/391540/remote/

Save game cloud syncing

System	Native	Notes
GOG Galaxy
Steam Cloud		Not used for game save data, but to store specific player actions in the game.
Xbox Cloud

Video settings

Borderless fullscreen windowed

Borderless mode workaround[citation needed]
Install AutoSizer and Borderless Gaming. Run the game and both applications. In AutoSizer, select Undertale and click on AutoSize. Set the action to Resize / Position. Set the size to your screen resolution. Set the position to 0x0. In Borderless Gaming, add Undertale to Favorites, right-click and set the game to No Size Change. Restart the game.

Input settings

General settings. Joystick config and game start are invisible if no controller is detected.

Input settings.

Audio settings

Localizations

Language	UI	Audio	Sub	Notes
English
Arabic				Fan translation, By Games in Arabic.
Brazilian Portuguese				Download here. Only works with version 1.001 of the game.. Alternate link
French				Fan translation, download.
German				Fan translation, download. Alternate link
Greek				Fan translation by Hardcoded_UT on Reddit
Italian				Download here. Only works with version 1.01 of the game. Only works on the Windows version.
Japanese
Korean				Download here. Potential method to get the translation to work on Linux version 1.01.
Russian				Fan translation, download. Also available as a bonus content on GOG.com.
Simplified Chinese				Fan translation, download.
Spanish				Fan translation, download.
Traditional Chinese				Fan translation, download.

Issues fixed

Common problems and contact information can be found at official troubleshooting page and stickied Steam community forum post.

White screen on startup

Game window displays only white color (audio is playing, but nothing is visible).

Disable variable refresh rate of your monitor (FreeSync, G-Sync)
Set fixed refresh rate for Undertale in control panel of your graphics card or disable variable refresh rate completely.

Game Doesn't Start On Linux

Game window flashes briefly before closing or doesn't appear to start at all

Use Wine/Proton instead of the native Linux version.

The native Linux release of the game does not always open due to missing packages on your system or due to Linux trying to run it in 64-bit mode instead of 32-bit mode. If these two issues are resolved, you can run the game natively. However, it is generally easier to use Proton or Wine to play the game instead. In Steam, open the Properties tab of Undertale. Then, enable the "Force the use of a specific Steam Play compatability tool" setting and select the latest release of Proton from the dropdown menu. This will download the Windows version of the game and open it via Proton. For other platforms, download the Windows version of the game and the latest stable release of Wine for your distribution. Then, run the executable with Wine.

Other information

API

Technical specs	Supported	Notes
Direct3D	9

Executable	32-bit	64-bit	Notes
Windows
macOS (OS X)
Linux

Undertale Genocide Remover

A utility that automatically removes the permanent effects of a Genocide (or No Mercy) Route.

Details and download links are available through the author's site (archived)

Unitale

A Lua-moddable Undertale-based engine that allows for custom content to be created with the game's artistic style and gameplay.

Further details can be found on the engine subreddit.

System requirements

Windows

macOS (OS X)

Linux

Windows
	Minimum	Recommended
Operating system (OS)	XP, Vista, 7, 8, 10
Processor (CPU)		2 GHz
System memory (RAM)	2 GB	3 GB
Hard disk drive (HDD)	200 MB
Video card (GPU)	128 MB of VRAM	512 MB of VRAM

Linux
	Minimum	Recommended
Operating system (OS)	Ubuntu 14.04 or Linux Mint 17.3 are recommended
Processor (CPU)
System memory (RAM)	2 GB	4 GB
Hard disk drive (HDD)	200 MB

macOS (OS X)
	Minimum	Recommended
Operating system (OS)
Processor (CPU)
System memory (RAM)	2 GB	2 GB
Hard disk drive (HDD)	200 MB