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麻雀一番街 × OVERLORD

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App ID 1954420
App Type Game
Store Name Riichi City × OVERLORD
Developer
Publisher Formirai Co., Ltd.
Supported Systems Windows macOS Linux
Technologies Unity Engine, EpicOnlineServices SDK
Last Changenumber 30081414
Last Record Update 16 July 2025 – 03:29:24 UTC ()
Release Date 8 September 2022 – 07:57:56 UTC ()
😐 50.67%
3k reviews
235
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 ↴
id1954420_eula_0
name麻雀一番街（RiichiCity） - 在线日本麻将 EULA
urlhttps://store.steampowered.com//eula/1954420_eula_0
version2
Exclude from family sharing (exfgls) 3 (Free Game)
Store Release Date 8 September 2022 – 07:57:56 UTC ()
osarch 64
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 23 June 2025 – 07:50:53 UTC () (1750665053)
library_assets
library_capsuleen,ja,ko,zh-cn,zh-tw
library_heroen
library_logoen,ja,zh-cn,zh-tw,ko
library_headeren,ko,zh-cn,zh-tw,ja
osextended macos64,macosapplesilicon,macosnotarized
name_localized
tchinese麻雀一番街 × OVERLORD
englishRiichi City × OVERLORD
japanese麻雀一番街 × OVERLORD
Is free on the store? Yes
review_score 5
review_percentage 50
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_inputother
    requires_manual_keyboard_invoke1
    requires_non_controller_launcher_nav0
    primary_player_is_controller_slot_00
    non_deck_display_glyphs0
    small_text0
    requires_internet_for_setup0
    requires_internet_for_singleplayer0
    recommended_runtimeproton-stable
    requires_h2640
    requires_voice_files0
    gamescope_frame_limiter_not_supported0
    hdr_support0
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

Tags

🔞 Sexual Content 😌 Casual 🌸 Anime 🕴 Psychological Horror 🔪 Thriller 🃏 Card Game 😱 Horror 🧸 Cute 💻 Modern 💡 Strategy 🌐 RTS 🌸 JRPG 😃 Funny 🃏 Card Battler 🏅 Sports ▶️ Real Time Tactics 🌓 2.5D 💥 Souls-like 🎲 Board Game 🎭 Drama

Categories

Online PvP Cross-Platform Multiplayer In-App Purchases PvP Multi-player

Assets

Load all asset images
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LinuxClientIcon 9f0b67a6dbbab177e949e3f897fd59f7a4db4be5
small_capsule
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schinese9cc3df955c21d60e08036902e89f2b03e0e0fdda/capsule_231x87_schinese.jpg
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header_image
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schineseheader_schinese.jpg
tchineseheader_tchinese.jpg
library_assets_full
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image2x/tchineselibrary_600x900_tchinese_2x.jpg
library_hero ↴
image/englishlibrary_hero.jpg
image2x/englishlibrary_hero_2x.jpg
library_logo ↴
image/englishbf9c695f075109175ad195a30b6798ec5d8a526b/logo.png
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image/schinese9a8f58de31b236436e726d856e8a44bf3db5df31/logo_schinese.png
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image2x/koreana9a8f58de31b236436e726d856e8a44bf3db5df31/logo_koreana_2x.png
library_header ↴
image/englishlibrary_header.jpg
image/koreanalibrary_header_koreana.jpg
image/schineselibrary_header_schinese.jpg
image/tchineselibrary_header_tchinese.jpg
image/japaneselibrary_header_japanese.jpg
image2x/englishlibrary_header_2x.jpg
image2x/koreanalibrary_header_koreana_2x.jpg
image2x/schineselibrary_header_schinese_2x.jpg
image2x/tchineselibrary_header_tchinese_2x.jpg
image2x/japaneselibrary_header_japanese_2x.jpg
Assets
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small_capsule01dffcecde1018cc10733127e76638b16ca9131b/capsule_231x87.jpg
headerheader.jpg
page_backgroundpage_bg_generated_v6b.jpg
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hero_capsule_2x693edab39c045372d36d9065021d3d40c9db582e/hero_capsule_2x.jpg
library_capsulelibrary_600x900.jpg
library_capsule_2xlibrary_600x900_2x.jpg
library_herolibrary_hero.jpg
library_hero_2xlibrary_hero_2x.jpg
community_icon34b42a2e9a5a37d84f07a5c717a750536cf4c27d.jpg
page_background_pathapp/1954420
raw_page_backgroundpage_bg_raw.jpg
timestamp23 June 2025 – 07:51:03 UTC
Trailers
257160208 ↴
trailer_nameOverlord
trailer_category3
trailer_480p/video/webm257160208/movie480_vp9.webm
trailer_480p/video/mp4257160208/movie480.mp4
trailer_max/video/webm257160208/movie_max_vp9.webm
trailer_max/video/mp4257160208/movie_max.mp4
microtrailer/video/webm1954420/2082474560/b7f2ac9e13f538e5bdbb7ae8fa02750050032649/1750663035/microtrailer.webm
microtrailer/video/mp41954420/2082474560/b7f2ac9e13f538e5bdbb7ae8fa02750050032649/1750663035/microtrailer.mp4
screenshot_medium257160208/c0b989979d1884247808dd2665d7b73e7dcfb659/movie_600x337.jpg
screenshot_full257160208/c0b989979d1884247808dd2665d7b73e7dcfb659/movie_full.jpg
trailer_base_id920898
all_agestrue
is_highlighttrue
timestamp1750665061

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