Undertale 10th Anniversary box art

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Undertale 10th Anniversary

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Undertale 10th Anniversary

Sep 21, 2025

Main game

Two fights that were featured in the UNDERTALE 10th Anniversary event, released after the event.
Developers
tobyfox
Publishers
tobyfox
Series
Undertale
Platforms
Web Browser
Genres
Arcade
Themes
Fantasy
Release Dates
Sep 21, 2025 Full Release (Worldwide)
Web Browser
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