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App ID	1671210
App Type	Game
Developer	tobyfox
Publisher	tobyfox
Supported Systems	Windows macOS
Technologies	GameMaker Engine
Last Changenumber	29965250
Last Record Update	9 July 2025 – 09:16:24 UTC ()
Release Date	4 June 2025 – 14:55:00 UTC ()

🤩 96.89%

58k reviews

5,138

In-Game

Dive into the parallel story to UNDERTALE! Fight or spare your way through action-packed battles as you explore a mysterious world alongside an endearing cast of new and familiar characters. Chapters 1-4 will be available on launch, with more planned as free updates!

Screenshots

Additional Information

Developer

tobyfox

controller_support

full

ReleaseState

released

Publisher

tobyfox

Store Release Date

4 June 2025 – 14:55:29 UTC ()

osarch

community_hub_visible

Yes

Primary Genre

RPG (3)

Store Genres

Indie (23), RPG (3)

Steam Release Date

4 June 2025 – 14:55:00 UTC ()

Store Asset Modification Time

6 June 2025 – 23:27:49 UTC () (1749252469)

library_assets

library_capsule	en
library_hero	en
library_logo	en
library_header	en
logo_position ↴
pinned_position	UpperCenter
width_pct	90.04607127540152
height_pct	100

osextended

macos64

review_score

review_percentage

Detected Technologies (?)

GameMaker Engine

Steam Deck Compatibility

Steam Deck:
All functionality is accessible when using the default controller configuration
This game shows Steam Deck controller icons
In-game interface text is legible on Steam Deck
This game's default graphics configuration performs well on Steam Deck
Note: This game does not default to external Bluetooth/USB controllers on Deck, and may require manually switching the active controller via the Quick Access Menu
SteamOS:
This game runs successfully on SteamOS
Note: This game does not default to external Bluetooth/USB controllers on SteamOS, and may require manually switching the active controller via the Quick Access Menu
category: Verified
steamos_compatibility: Compatible
test_timestamp: 28 May 2025 – 00:00:00 UTC
tested_build_id: 18499438

configuration:

supported_input	gamepad
requires_manual_keyboard_invoke	0
requires_non_controller_launcher_nav	0
primary_player_is_controller_slot_0	1
non_deck_display_glyphs	0
small_text	0
requires_internet_for_setup	0
requires_internet_for_singleplayer	0
recommended_runtime	proton-9.0-4RC
requires_h264	0
requires_voice_files	0
gamescope_frame_limiter_not_supported	0
hdr_support	0

controllertagwizard

Yes

First seen on SteamDB

17 June 2021 – 04:18:55 UTC (), in changelist #11781609

Supported Languages

2 Languages	Interface	Full Audio	Subtitles
English	Yes
Japanese	Yes

Hardware Categories

Full Controller Support

DualShock Controllers (USB Only)

DualSense Controllers (USB Only)

DualSense Controllers

Assets

Load all asset images

clienticon

4ae0c6c7805c502bf0bac95df98997ee7d442903

clienttga

443af9c95af37139b2a4cc85b4b83801231b888b

icon

f76969de63cf2f4eb11bc4a1c17e67beb590a9c5

logo

aabc9186fc8dddc6c4a4bc2e40cd0724e19b01ea

logo_small

aabc9186fc8dddc6c4a4bc2e40cd0724e19b01ea_thumb

small_capsule

english

capsule_231x87.jpg

header_image

english

7ccda5b1631d2e60cc756a3271e845dbb9168821/header.jpg

library_assets_full

library_capsule ↴
image/english	library_600x900.jpg
image2x/english	library_600x900_2x.jpg
library_hero ↴
image/english	library_hero.jpg
image2x/english	library_hero_2x.jpg
library_logo ↴
image/english	logo.png
image2x/english	logo_2x.png
logo_position/pinned_position	UpperCenter
logo_position/width_pct	90.04607127540152
logo_position/height_pct	100
library_header ↴
image/english	7ccda5b1631d2e60cc756a3271e845dbb9168821/library_header.jpg
image2x/english	7ccda5b1631d2e60cc756a3271e845dbb9168821/library_header_2x.jpg

Assets

main_capsule	capsule_616x353.jpg
small_capsule	capsule_231x87.jpg
header	7ccda5b1631d2e60cc756a3271e845dbb9168821/header.jpg
page_background	page_bg_generated_v6b.jpg
hero_capsule	hero_capsule.jpg
library_capsule	library_600x900.jpg
library_capsule_2x	library_600x900_2x.jpg
library_hero	library_hero.jpg
library_hero_2x	library_hero_2x.jpg
community_icon	f76969de63cf2f4eb11bc4a1c17e67beb590a9c5.jpg
page_background_path	app/1671210
raw_page_background	page_bg_raw.jpg
timestamp	6 June 2025 – 23:28:00 UTC

Trailers

257121390 ↴
trailer_name	TRAILER_1_4_JP
trailer_category	0
trailer_480p/video/webm	257121390/movie480_vp9.webm
trailer_480p/video/mp4	257121390/movie480.mp4
trailer_max/video/webm	257121390/movie_max_vp9.webm
trailer_max/video/mp4	257121390/movie_max.mp4
microtrailer/video/webm	1671210/862419/adeb7b7d3ac2cce7972108e77b01e7c907f89d57/1749168554/microtrailer.webm
microtrailer/video/mp4	1671210/862419/adeb7b7d3ac2cce7972108e77b01e7c907f89d57/1749168554/microtrailer.mp4
screenshot_medium	257121390/709b1d764b7d09775447e5c5daaf55bfb1494b11/movie_600x337.jpg
screenshot_full	257121390/709b1d764b7d09775447e5c5daaf55bfb1494b11/movie_full.jpg
trailer_base_id	862419
all_ages	true
is_highlight	true
timestamp	1743604542
257121388 ↴
trailer_name	TRAILER_1-4
trailer_category	0
trailer_480p/video/webm	257121388/movie480_vp9.webm
trailer_480p/video/mp4	257121388/movie480.mp4
trailer_max/video/webm	257121388/movie_max_vp9.webm
trailer_max/video/mp4	257121388/movie_max.mp4
microtrailer/video/webm	1671210/862416/d976201bfe6076f0e234989576ab48d32608ce95/1749168553/microtrailer.webm
microtrailer/video/mp4	1671210/862416/d976201bfe6076f0e234989576ab48d32608ce95/1749168553/microtrailer.mp4
screenshot_medium	257121388/709b1d764b7d09775447e5c5daaf55bfb1494b11/movie_600x337.jpg
screenshot_full	257121388/709b1d764b7d09775447e5c5daaf55bfb1494b11/movie_full.jpg
trailer_base_id	862416
all_ages	true
is_highlight	true
timestamp	1743604544

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Supported Languages

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