... is an unofficial fan-made reimagining of Toby Fox's UNDERTALE, made by Team Switched (TS).
The official DEMO features the first two areas: Ruined Home and Starlight Isles!
It's available for free on 
Windows, 
Linux and 
Android.
(Estimated playtime for first run: at least 4-6 hours.)
Explore a new world inspired by the works of Toby Fox.
A reimagined Underground boasting new area themes, level progression, and expansive locations rich with original content.
Expanded gameplay mechanics, new features, and quality of life improvements both original and DELTARUNE-inspired.
- A JOURNAL for keeping track of monsters encountered, side quests, and collectable items.
- Brand new puzzle and mobility mechanics.
- DELTARUNE-inspired overworld dodging and inventory quality of life additions.
- Extra colored sprites options and trophies.
Battle monsters new and old, with re-imagined versions of returning enemies and bullet patterns.
Enemies can be nonviolently pacified through interaction, though you can still destroy your foes. The world will react depending on your choices.
Choose your own path, with emphasis on player choice and replayability.
Encounter a cast of returning characters in new roles, alongside completely original characters.
Heavy emphasis on attention to detail to provide fans of UNDERTALE with something familiar, yet brand new.
Features original artwork and music inspired by the style of UNDERTALE and DELTARUNE, including remixed melodies and brand new compositions.
Explore a new world inspired by the works of Toby Fox.
A reimagined Underground boasting new area themes, level progression, and expansive locations rich with original content.
Expanded gameplay mechanics, new features, and quality of life improvements both original and DELTARUNE-inspired.
- A JOURNAL for keeping track of monsters encountered, side quests, and collectable items.
- Brand new puzzle and mobility mechanics.
- DELTARUNE-inspired overworld dodging and inventory quality of life additions.
- Extra colored sprites options and trophies.
Battle monsters new and old, with re-imagined versions of returning enemies and bullet patterns.
Enemies can be nonviolently pacified through interaction, though you can still destroy your foes. The world will react depending on your choices.
Choose your own path, with emphasis on player choice and replayability.
Encounter a cast of returning characters in new roles, alongside completely original characters.
Heavy emphasis on attention to detail to provide fans of UNDERTALE with something familiar, yet brand new.
Features original artwork and music inspired by the style of UNDERTALE and DELTARUNE, including remixed melodies and brand new compositions.
We hope you enjoy our little project! It's something really special to us.
For more information, please read our Frequently Asked Questions page.
We also offer support for community-made translations! Read our Localization Info page for more details.