Iconic
Undertale icons for Mac
3 alternative Undertale icons for macOS, made by 3 designers, including thepotatoking55, idfkwhyy and astronocraft. The most popular one has been downloaded 561 times. Newest added May 2026. Every icon is a 1024×1024 PNG with a transparent background, sized for the Dock.
How to use a custom Undertale icon
- Pick an icon below and download the PNG.
- One click with Iconic: select Undertale in the sidebar, search, click the icon. Iconic restarts the Dock for you.
- Or by hand: open Finder → Applications, select Undertale, press ⌘I, then drag the PNG onto the small icon at the top of the Info window. Full guide.
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FAQ
Are these Undertale icons free?
Yes. Every icon on this page is a free 1024×1024 PNG download, credited to the designer who made it. No account needed.
How do I change the Undertale icon on my Mac?
Select Undertale in Finder, press Command-I, and drag the PNG onto the icon at the top of the Info window. Or use Iconic to apply it in one click.
Will the custom icon survive Undertale updates?
An app update can replace the app and bring the stock icon back. Iconic's background service notices updates and reapplies your custom icon automatically.