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DELTARUNE

DELTARUNE cover art
Developer
tobyfox
Released
Jun 4, 2025
Steam reviews
98% of players recommend it, from 138,551 reviews — Steam calls that “Overwhelmingly Positive”
Tags
IndieRPG
View on Steam

On Linux, Steam Deck, Steam Machine and Steam Frame

Proton: PlatinumDeck VerifiedSteam Machine: VerifiedSteam Frame: VerifiedSteamOS Compatible

This game runs perfectly out of the box under Proton, per ProtonDB reports (280 reports). Valve rates it Deck Verified.

Valve rates it Verified on Steam Machine. Valve rates it Verified on Steam Frame. Valve marks it SteamOS Compatible.

Proton tier: ProtonDB · Deck rating: Valve · Steam Machine, Steam Frame and SteamOS ratings: Valve · Compare 2,053 games · Every game Valve rated for Steam Machine · Every game Valve rated for Steam Frame

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About this game

The developer's description, from the game's Steam store page.

The next adventure in the UNDERTALE series has appeared!

Fight (or spare) alongside new characters in UNDERTALE's parallel story, DELTARUNE...!

Featuring

  • A massive soundtrack and story written by Toby Fox!
  • Meet new and endearing main characters, as well as familiar faces like Toriel, Sans, as more. Huh? Papyrus? No, he's busy. Sorry
  • Smooth and expressive pixel-animation by Temmie. She also has a new hat (in-game)
  • A linear, chapter-based system that you can pick up from anywhere.
  • Creative bullet-dodging based battles inspired by games like Touhou and Chrono Trigger.
  • Jevilishly difficult hidden bosses.
  • And...
  • ...
  • ... only 1 ending...?

Try Chapter 1 and 2 for free now!

Further chapters... you must buy.

FAQ

  • Is Chapter 5 the last chapter?

Nope! The story is still continuing, and more Chapters will be added for free over time.

[​/p][​/*]

  • Then when's Chapter 6?

We are aiming for a 2027 release! Meanwhile, we will be periodically releasing information on the development progress of the game.

[​/p][​/*]

  • Can you pet dogs in the first 2 chapters?

(crying) This FAQ is over!

[​/dog]

System requirements

As Steam lists them.

Windows

Minimum

Requires a 64-bit processor and operating system
OS
Windows 10 or higher
Memory
2 GB RAM
Graphics
128 MB
DirectX
Version 12
Storage
1 GB available space

Recommended

Requires a 64-bit processor and operating system
OS
Windows 10 or higher
Memory
4 GB RAM
Graphics
512MB
Storage
1 GB available space
macOS

Minimum

OS
Mac OS X 10.11 or later
Memory
2 GB RAM
Storage
1 GB available space

Recommended

Memory
4 GB RAM
Storage
1 GB available space

Downloadable content

Steam lists 1 item of downloadable content for this game.

News

What DELTARUNE's studio and the outlets Valve syndicates on Steam have said recently.

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