Serment - Contract with a Devil

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App ID	632900
App Type	Game
Developer	Nkt Studio
Publisher	Sekai Project
Supported Systems	Windows macOS Linux
Technologies	PyGame Engine, RenPy Engine
Last Changenumber	30616675
Last Record Update	15 August 2025 – 18:25:47 UTC ()
Release Date	1 February 2019 – 17:46:24 UTC ()

❓ 71.66%

91 reviews

In-Game

Serment - Contract with a Devil is a visual novel/dungeon crawler hybrid featuring highly tactical turn based RPG battles, challenging dungeon puzzles, optional minigames and most importantly, a lot of cute anime girls.

Additional Information

Developer

Nkt Studio

metacritic_name

Serment - Contract with a Devil

controller_support

partial

community_visible_stats

Yes

ReleaseState

released

Publisher

Sekai Project

Store Release Date

1 February 2019 – 17:46:35 UTC ()

osarch

empty string

community_hub_visible

Yes

Social Media

https://www.facebook.com/SekaiProject/
https://www.twitch.tv/sekaiproject
https://x.com/sekaiproject
https://www.youtube.com/sekaiproject/

Primary Genre

RPG (3)

Store Genres

RPG (3)

Steam Release Date

1 February 2019 – 17:46:24 UTC ()

Store Asset Modification Time

5 September 2019 – 20:11:14 UTC () (1567714274)

library_assets

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

review_score

review_percentage

Detected Technologies (?)

PyGame Engine, RenPy Engine, Python SDK, SDL SDK

Steam Deck Compatibility

Steam Deck:
This game sometimes shows mouse, keyboard, or non-Steam-Deck controller icons
Entering some text requires manually invoking the on-screen keyboard
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
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: Entering some text requires manually invoking the on-screen keyboard
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: Playable
steamos_compatibility: Compatible
test_timestamp: 13 February 2025 – 00:00:00 UTC
tested_build_id: 4293497

configuration:

supported_input	gamepad
requires_manual_keyboard_invoke	1
requires_non_controller_launcher_nav	0
primary_player_is_controller_slot_0	1
non_deck_display_glyphs	1
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), General Mature Content (5)

First seen on SteamDB

2 May 2017 – 14:54:24 UTC (), in changelist #2941513

Content Descriptors (Including DLC)

Some Nudity or Sexual Content (1), General Mature Content (5)

Supported Languages

1 Languages	Interface	Full Audio	Subtitles
English	Yes		Yes

Hardware Categories

Partial Controller Support

Assets

Load all asset images

clienticon

f91e4f9c4335f24da5b3e45f46d77943de754f8d

icon

b373ebff128495075cbec9e0865692d6dc1c8881

logo

695068df726d589918c34d54f1daf13eb394e34f

logo_small

695068df726d589918c34d54f1daf13eb394e34f_thumb

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
library_capsule	library_600x900.jpg
library_capsule_2x	library_600x900_2x.jpg
library_hero	library_hero.jpg
community_icon	b373ebff128495075cbec9e0865692d6dc1c8881.jpg
page_background_path	app/632900
raw_page_background	page_bg_raw.jpg
timestamp	3 February 2021 – 05:54:37 UTC

Trailers

105145 ↴
trailer_name	Pub event
trailer_category	0
trailer_480p/video/webm	256685918/movie480.webm
trailer_480p/video/mp4	256685918/movie480.mp4
trailer_max/video/webm	256685918/movie_max.webm
trailer_max/video/mp4	256685918/movie_max.mp4
microtrailer/video/webm	632900/105145/554d3413a25bacb93d635a6f4495b170a63a2ae9/1751124522/microtrailer.webm
microtrailer/video/mp4	632900/105145/554d3413a25bacb93d635a6f4495b170a63a2ae9/1751124522/microtrailer.mp4
adaptive_trailers/0/cdn_path	632900/105145/554d3413a25bacb93d635a6f4495b170a63a2ae9/1751124522/dash_av1.mpd
adaptive_trailers/0/encoding	dash_av1
adaptive_trailers/1/cdn_path	632900/105145/554d3413a25bacb93d635a6f4495b170a63a2ae9/1751124522/dash_h264.mpd
adaptive_trailers/1/encoding	dash_h264
adaptive_trailers/2/cdn_path	632900/105145/554d3413a25bacb93d635a6f4495b170a63a2ae9/1751124522/hls_264_master.m3u8
adaptive_trailers/2/encoding	hls_h264
screenshot_medium	256685918/movie.293x165.jpg
screenshot_full	256685918/movie_full.jpg
all_ages	true
timestamp	1497910305

Store Packages

SubID	Name	Price		Last Update
172434	Serment - Contract with a Devil (Not in)	$14.99		6 October 2025 – 17:36:09 UTC

Packages

SubID	Name	Billing Type	Last Update
172432	Steam Sub 172432	CD Key	21 October 2024 – 17:48:05 UTC
172433	Serment - Contract with a Devil for Beta Testing	CD Key	2 May 2017 – 14:54:24 UTC
339848	Serment - Contract with a Devil ( 632900 ) - complimentary reviewer package	No Cost	15 February 2024 – 23:25:44 UTC

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Serment - Contract with a Devil

Additional Information

Supported Languages

Tags

Categories

Hardware Categories

Assets

Store Packages

Packages