麻雀一番街

Wishlist Follow Ignore Install Unwatch Watch

App ID	1954420
App Type	Game
Store Name	Riichi City - Japanese Mahjong
Developer	Formirai Co., Ltd.
Publisher	Formirai Co., Ltd.
Supported Systems	Windows macOS Linux
Technologies	Unity Engine, EpicOnlineServices SDK
Last Changenumber	30913517
Last Record Update	3 September 2025 – 03:31:39 UTC ()
Release Date	8 September 2022 – 07:57:56 UTC ()

😐 50.15%

3k reviews

343

In-Game

Riichi City is a competitive urban-style Anime mahjong game, featuring beginner-friendly mahjong tutorials, Ranked Matches and tournaments crowded with masters! Spice up the experience with our ACG characters voiced by famous CVs, and attractive items and decorations! Set off for Riichi City now!

Additional Information

This game is excluded from Steam Family Sharing because: Free Game

Developer

Formirai Co., Ltd.

ReleaseState

released

Publisher

Formirai Co., Ltd.

IsFreeApp

Yes

eulas

0 ↴
id	1954420_eula_0
name	麻雀一番街（RiichiCity） - 在线日本麻将 EULA
url	https://store.steampowered.com//eula/1954420_eula_0
version	2

Exclude from family sharing (exfgls)

3 (Free Game)

Store Release Date

8 September 2022 – 07:57:56 UTC ()

osarch

community_hub_visible

Yes

Social Media

https://discord.gg/5z3Nw2rPNx
https://x.com/RiichiCity_JP
https://www.youtube.com/channel/UC3fBAXW5VNK4JLvOfoYHTAQ/

Primary Genre

Unknown Genre (0)

Steam Release Date

8 September 2022 – 07:57:56 UTC ()

Store Asset Modification Time

20 July 2025 – 15:01:39 UTC () (1753023699)

library_assets

library_capsule	en,ja,ko,zh-cn,zh-tw
library_hero	en
library_logo	en,ja,zh-cn,zh-tw,ko
library_header	en,ko,zh-cn,zh-tw,ja

osextended

macos64,macosapplesilicon,macosnotarized

name_localized

tchinese	麻雀一番街－重視勝利的線上日本麻將遊戲
english	Riichi City - Japanese Mahjong
japanese	麻雀一番街 - オンライン対戦麻雀ゲーム

Is free on the store?

Yes

review_score

review_percentage

Detected Technologies (?)

Unity Engine, EpicOnlineServices SDK, Protocol_Buffers SDK, UnityIL2CPP SDK, XAudio2 SDK

Steam Deck Compatibility

Steam Deck:
Entering some text requires manually invoking the on-screen keyboard
All functionality is accessible when using the default controller configuration
In-game interface text is legible on Steam Deck
This game's default graphics configuration performs well on Steam Deck
SteamOS:
This game runs successfully on SteamOS
Note: Entering some text requires manually invoking the on-screen keyboard
category: Playable
steamos_compatibility: Compatible
test_timestamp: 29 October 2022 – 00:00:00 UTC
tested_build_id: 9303068

configuration:

supported_input	other
requires_manual_keyboard_invoke	1
requires_non_controller_launcher_nav	0
primary_player_is_controller_slot_0	0
non_deck_display_glyphs	0
small_text	0
requires_internet_for_setup	0
requires_internet_for_singleplayer	0
recommended_runtime	proton-stable
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

31 March 2022 – 06:48:25 UTC (), in changelist #14381113

Content Descriptors (Including DLC)

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

Supported Languages

4 Languages	Interface	Full Audio	Subtitles
English	Yes		Yes
Japanese	Yes	Yes	Yes
Traditional Chinese	Yes		Yes
Simplified Chinese	Yes		Yes

Assets

Load all asset images

clienticon

b189528ccea1af044d19a7b93aba7977cd303fa7

clienttga

ff12fedbc8f1e2a1b6d63269b67468c61ee73902

icon

b189528ccea1af044d19a7b93aba7977cd303fa7

clienticns

79cdd22fc609b45920b1427a497f1c5dc4f843be

LinuxClientIcon

9d6adfee88cd501b96eac1f89f4888cf90ad1c75

small_capsule

english	01dffcecde1018cc10733127e76638b16ca9131b/capsule_231x87.jpg
koreana	3e085c67f51aa83ad6275fe3c3c5b728bc9bdd31/capsule_231x87_koreana.jpg
schinese	9cc3df955c21d60e08036902e89f2b03e0e0fdda/capsule_231x87_schinese.jpg
tchinese	9cc3df955c21d60e08036902e89f2b03e0e0fdda/capsule_231x87_tchinese.jpg
japanese	9cc3df955c21d60e08036902e89f2b03e0e0fdda/capsule_231x87_japanese.jpg

header_image

english	header.jpg
japanese	header_japanese.jpg
schinese	header_schinese.jpg
tchinese	header_tchinese.jpg

library_assets_full

library_capsule ↴
image/english	library_600x900.jpg
image/japanese	library_600x900_japanese.jpg
image/koreana	library_600x900_koreana.jpg
image/schinese	library_600x900_schinese.jpg
image/tchinese	library_600x900_tchinese.jpg
image2x/english	library_600x900_2x.jpg
image2x/japanese	library_600x900_japanese_2x.jpg
image2x/koreana	library_600x900_koreana_2x.jpg
image2x/schinese	library_600x900_schinese_2x.jpg
image2x/tchinese	library_600x900_tchinese_2x.jpg
library_hero ↴
image/english	library_hero.jpg
image2x/english	library_hero_2x.jpg
library_logo ↴
image/english	bf9c695f075109175ad195a30b6798ec5d8a526b/logo.png
image/japanese	9a8f58de31b236436e726d856e8a44bf3db5df31/logo_japanese.png
image/schinese	9a8f58de31b236436e726d856e8a44bf3db5df31/logo_schinese.png
image/tchinese	9a8f58de31b236436e726d856e8a44bf3db5df31/logo_tchinese.png
image/koreana	9a8f58de31b236436e726d856e8a44bf3db5df31/logo_koreana.png
image2x/english	bf9c695f075109175ad195a30b6798ec5d8a526b/logo_2x.png
image2x/japanese	9a8f58de31b236436e726d856e8a44bf3db5df31/logo_japanese_2x.png
image2x/schinese	9a8f58de31b236436e726d856e8a44bf3db5df31/logo_schinese_2x.png
image2x/tchinese	9a8f58de31b236436e726d856e8a44bf3db5df31/logo_tchinese_2x.png
image2x/koreana	9a8f58de31b236436e726d856e8a44bf3db5df31/logo_koreana_2x.png
library_header ↴
image/english	library_header.jpg
image/koreana	library_header_koreana.jpg
image/schinese	library_header_schinese.jpg
image/tchinese	library_header_tchinese.jpg
image/japanese	library_header_japanese.jpg
image2x/english	library_header_2x.jpg
image2x/koreana	library_header_koreana_2x.jpg
image2x/schinese	library_header_schinese_2x.jpg
image2x/tchinese	library_header_tchinese_2x.jpg
image2x/japanese	library_header_japanese_2x.jpg

Assets

main_capsule	2d47904bf93ca3371e5594600c5ee18985059dcf/capsule_616x353.jpg
small_capsule	01dffcecde1018cc10733127e76638b16ca9131b/capsule_231x87.jpg
header	header.jpg
page_background	page_bg_generated_v6b.jpg
hero_capsule	693edab39c045372d36d9065021d3d40c9db582e/hero_capsule.jpg
hero_capsule_2x	693edab39c045372d36d9065021d3d40c9db582e/hero_capsule_2x.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	b189528ccea1af044d19a7b93aba7977cd303fa7.jpg
page_background_path	app/1954420
raw_page_background	page_bg_raw.jpg
timestamp	20 July 2025 – 15:01:53 UTC

Trailers

257171485 ↴
trailer_name	3.5
trailer_category	3
trailer_480p/video/webm	257171485/movie480_vp9.webm
trailer_480p/video/mp4	257171485/movie480.mp4
trailer_max/video/webm	257171485/movie_max_vp9.webm
trailer_max/video/mp4	257171485/movie_max.mp4
microtrailer/video/webm	1954420/896093964/e6deac76c3fd29bec1422e0ba37489f2f6dbfa1c/1753018922/microtrailer.webm
microtrailer/video/mp4	1954420/896093964/e6deac76c3fd29bec1422e0ba37489f2f6dbfa1c/1753018922/microtrailer.mp4
screenshot_medium	257171485/67c0ebf3ad86b1e626727e817bd9db1c2abeba4b/movie_600x337.jpg
screenshot_full	257171485/67c0ebf3ad86b1e626727e817bd9db1c2abeba4b/movie_full.jpg
trailer_base_id	937952
all_ages	true
is_highlight	true
timestamp	1753023711

Depots

ID	Configuration	Size	DL.
1954421	Windows	8.28 GiB	6.61 GiB
1954422	macOS	9.11 GiB	7.02 GiB
1954423	Linux	8.53 GiB	6.72 GiB

Total size on disk is 25.92 GiB and total download size is 20.34 GiB.

Total size on disk is 8.28 GiB and total download size is 6.61 GiB, when filtered to Windows, English, no DLC depots.

Branches

Name	Description	Build ID	Time Updated
public		19239019	20 July 2025 – 12:23:46 UTC

Other

Name	Value
hasdepotsindlc	0
baselanguages	English, Korean, Traditional Chinese, Japanese
privatebranches	1

麻雀一番街

Additional Information

Supported Languages

Tags

Categories

Assets

Depots

Branches

Other