Quantum Suicide

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App ID	1020030
App Type	Game
Developer	Cotton Candy Cyanide
Publisher	Cotton Candy Cyanide
Supported Systems	Windows macOS Linux
Technologies	PyGame Engine, RenPy Engine
Last Changenumber	30022032
Last Record Update	12 July 2025 – 01:00:18 UTC ()
Release Date	10 September 2020 – 11:47:49 UTC ()

❓ 71.50%

115 reviews

In-Game

Quantum Suicide is a game of betrayal, deception and romance in the cold depths of space.

Additional Information

Developer

Cotton Candy Cyanide

metacritic_name

Quantum Suicide

controller_support

full

community_visible_stats

Yes

ReleaseState

released

Publisher

Cotton Candy Cyanide

eulas

0 ↴
id	1020030_eula_0
name	Quantum Suicide EULA
url	https://store.steampowered.com//eula/1020030_eula_0

Store Release Date

10 September 2020 – 07:00:00 UTC ()

osarch

community_hub_visible

Yes

Social Media

https://x.com/CottonCandyCN
https://www.youtube.com/cottoncandycyanidecn/

Primary Genre

Adventure (25)

Store Genres

Adventure (25), Casual (4), Indie (23)

Steam Release Date

10 September 2020 – 11:47:49 UTC ()

Original Release Date

10 September 2020 – 07:00:00 UTC () (1599721200)

Store Asset Modification Time

31 October 2022 – 12:36:15 UTC () (1667219775)

library_assets

library_capsule	en
library_hero	en
library_logo	en
logo_position ↴
pinned_position	CenterCenter
width_pct	100
height_pct	100

osextended

macos64

review_score

review_percentage

Detected Technologies (?)

PyGame Engine, RenPy Engine, Python SDK, SDL SDK

Steam Deck Compatibility

Steam Deck:
Some in-game text is small and may be difficult to read
All functionality is accessible when using the default controller configuration
This game's default graphics configuration performs well on Steam Deck
SteamOS:
This game runs successfully on SteamOS
category: Playable
steamos_compatibility: Compatible
test_timestamp: 5 July 2025 – 00:00:00 UTC
tested_build_id: 7625384

configuration:

supported_input	other
requires_manual_keyboard_invoke	0
requires_non_controller_launcher_nav	0
primary_player_is_controller_slot_0	0
non_deck_display_glyphs	0
small_text	1
requires_internet_for_setup	0
requires_internet_for_singleplayer	0
recommended_runtime	native
requires_h264	0
requires_voice_files	0
gamescope_frame_limiter_not_supported	0
hdr_support	0

Content Descriptors

Some Nudity or Sexual Content (1), Frequent Violence or Gore (2), General Mature Content (5)

First seen on SteamDB

22 January 2019 – 06:34:43 UTC (), in changelist #5703728

Content Descriptors (Including DLC)

Some Nudity or Sexual Content (1), Frequent Violence or Gore (2), General Mature Content (5)

Supported Languages

2 Languages	Interface	Full Audio	Subtitles
English	Yes	Yes	Yes
Japanese	Yes	Yes	Yes

Hardware Categories

Full Controller Support

Assets

Load all asset images

clienticon

c16abe878637aca685f13858d70a80ce23e7599a

clienttga

05c4976665412f153bf791146fc7378bee475d0b

icon

508f20aac0d48571b4192a50e036b3cd45b5973c

logo

b217a2eca4b299f4d985d7020b9f5de25454200d

logo_small

b217a2eca4b299f4d985d7020b9f5de25454200d_thumb

LinuxClientIcon

bcff1b75ee2c67240438e1a0edcd285a88717748

small_capsule

english

capsule_231x87.jpg

header_image

english

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
library_logo ↴
image/english	logo.png
image2x/english	logo_2x.png
logo_position/pinned_position	CenterCenter
logo_position/width_pct	100
logo_position/height_pct	100

Assets

main_capsule	capsule_616x353.jpg
small_capsule	capsule_231x87.jpg
header	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
community_icon	508f20aac0d48571b4192a50e036b3cd45b5973c.jpg
page_background_path	app/1020030
raw_page_background	page_bg_raw.jpg
timestamp	4 March 2025 – 13:22:21 UTC

Trailer 308372 ↴

trailer_name	Release Date Trailer
trailer_category	0
trailer_480p ↴
video/webm	256798768/movie480_vp9.webm
video/mp4	256798768/movie480.mp4
trailer_max ↴
video/webm	256798768/movie_max_vp9.webm
video/mp4	256798768/movie_max.mp4
microtrailer ↴
video/webm	1020030/308372/e2bf20ac06b5ad73e991b0af4825ab7a4392f5fa/1751177433/microtrailer.webm
video/mp4	1020030/308372/e2bf20ac06b5ad73e991b0af4825ab7a4392f5fa/1751177433/microtrailer.mp4
adaptive_trailers ↴
dash_av1	1020030/308372/e2bf20ac06b5ad73e991b0af4825ab7a4392f5fa/1751177433/dash_av1.mpd
dash_h264	1020030/308372/e2bf20ac06b5ad73e991b0af4825ab7a4392f5fa/1751177433/dash_h264.mpd
hls_h264	1020030/308372/e2bf20ac06b5ad73e991b0af4825ab7a4392f5fa/1751177433/hls_264_master.m3u8
screenshot_medium	256798768/movie.293x165.jpg
screenshot_full	256798768/movie_full.jpg
all_ages	true
is_highlight	true
timestamp	27 August 2020 – 15:40:37 UTC

Trailer 240996 ↴

trailer_name	Teaser
trailer_category	0
trailer_480p ↴
video/webm	256760792/movie480.webm
video/mp4	256760792/movie480.mp4
trailer_max ↴
video/webm	256760792/movie_max.webm
video/mp4	256760792/movie_max.mp4
microtrailer ↴
video/webm	1020030/240996/06673e95475ab9194bd7a4b822b213d6b36ff871/1751177427/microtrailer.webm
video/mp4	1020030/240996/06673e95475ab9194bd7a4b822b213d6b36ff871/1751177427/microtrailer.mp4
adaptive_trailers ↴
dash_av1	1020030/240996/06673e95475ab9194bd7a4b822b213d6b36ff871/1751177427/dash_av1.mpd
dash_h264	1020030/240996/06673e95475ab9194bd7a4b822b213d6b36ff871/1751177427/dash_h264.mpd
hls_h264	1020030/240996/06673e95475ab9194bd7a4b822b213d6b36ff871/1751177427/hls_264_master.m3u8
screenshot_medium	256760792/movie.293x165.jpg
screenshot_full	256760792/movie_full.jpg
all_ages	true
is_highlight	true
timestamp	1 September 2019 – 16:20:34 UTC

Trailer 239294 ↴

trailer_name	Short Quantum Suicide Trailer
trailer_category	0
trailer_480p ↴
video/webm	256759674/movie480.webm
video/mp4	256759674/movie480.mp4
trailer_max ↴
video/webm	256759674/movie_max.webm
video/mp4	256759674/movie_max.mp4
microtrailer ↴
video/webm	1020030/239294/b5037d8f76f09f1625ede379c7c0d882cbfa1321/1751177427/microtrailer.webm
video/mp4	1020030/239294/b5037d8f76f09f1625ede379c7c0d882cbfa1321/1751177427/microtrailer.mp4
adaptive_trailers ↴
dash_av1	1020030/239294/b5037d8f76f09f1625ede379c7c0d882cbfa1321/1751177427/dash_av1.mpd
dash_h264	1020030/239294/b5037d8f76f09f1625ede379c7c0d882cbfa1321/1751177427/dash_h264.mpd
hls_h264	1020030/239294/b5037d8f76f09f1625ede379c7c0d882cbfa1321/1751177427/hls_264_master.m3u8
screenshot_medium	256759674/movie.293x165.jpg
screenshot_full	256759674/movie_full.jpg
all_ages	true
is_highlight	true
timestamp	31 August 2019 – 15:23:36 UTC

Trailer 239293 ↴

trailer_name	Full Quantum Suicide Trailer
trailer_category	0
trailer_480p ↴
video/webm	256759673/movie480.webm
video/mp4	256759673/movie480.mp4
trailer_max ↴
video/webm	256759673/movie_max.webm
video/mp4	256759673/movie_max.mp4
microtrailer ↴
video/webm	1020030/239293/dbf846b2ec6725956236f11e273d0fef1b293878/1751177426/microtrailer.webm
video/mp4	1020030/239293/dbf846b2ec6725956236f11e273d0fef1b293878/1751177426/microtrailer.mp4
adaptive_trailers ↴
dash_av1	1020030/239293/dbf846b2ec6725956236f11e273d0fef1b293878/1751177426/dash_av1.mpd
dash_h264	1020030/239293/dbf846b2ec6725956236f11e273d0fef1b293878/1751177426/dash_h264.mpd
hls_h264	1020030/239293/dbf846b2ec6725956236f11e273d0fef1b293878/1751177426/hls_264_master.m3u8
screenshot_medium	256759673/movie.293x165.jpg
screenshot_full	256759673/movie_full.jpg
all_ages	true
is_highlight	true
timestamp	31 August 2019 – 15:23:45 UTC

Depots

ID	Configuration	Size	DL.
1020031	Windows Quantum Suicide Content	4.27 GiB	3.91 GiB
1020032	macOS Quantum Suicide Depot (Mac)	4.27 GiB	3.92 GiB
1020033	Linux Quantum Suicide Depot (LINUX)	4.27 GiB	3.91 GiB
1503620	DLC 1503620Quantum Suicide - Christmas Everett (1503620) Depot	No size

Total size on disk is 12.80 GiB and total download size is 11.74 GiB.

Total size on disk is 4.27 GiB and total download size is 3.91 GiB, when filtered to Windows, English, no DLC depots.

Branches

Name	Description	Build ID	Time Updated
public		7625384	29 October 2021 – 13:56:52 UTC

Other

Name	Value
baselanguages	English, Japanese
hasdepotsindlc	0
privatebranches	1

Quantum Suicide

Additional Information

Supported Languages

Tags

Categories

Hardware Categories

Assets

Trailer 308372 ↴

Trailer 240996 ↴

Trailer 239294 ↴

Trailer 239293 ↴

Depots

Branches

Other