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'''Riichi City''' is a [[Japanese mahjong]] [[List of mahjong video games|platform]] released in January 2022.
'''Riichi City''' is an online [[Japanese mahjong]] [[List of mahjong video games|platform]] developed and published by Lancelot Tech Ltd. It was released on ''January 19th, 2022'', with the slogan "Conquer the challenges to be No.1". The game features an urban-style design and fast-paced in-game competition, and encourages players to fight to the top to become the mahjong champion. It offers basic game modes for free, while also providing Gacha mechanics where players can obtain new items and characters via top-up. Riichi City is available on Google Play Store, Apple App Store, Windows PC and Linux in four languages: English, Japanese, Chinese and Korean.


==Ladder==
== Game rules ==
===Game rules===
=== Ranked Match Rules ===
* [[Hanchan]] or [[Tonpuusen]]
 
* Start points: 25,000
==== 4-Player ====
* Target points: 30,000
* Starting Points: 25,000
* [[Uma]] (30, 10, -10, -30) With [[Oka]] (+20 to 1st)
* Kaeshi: 30,000
* [[Ari-ari]]
* Uma: [1st +30, 2nd +10, 3rd -10, 4th -30]
* [[Yakuman]] ([[Multiple_yakuman#Full_scoring|Full scoring]])
* Oka: On
:: (e.g. [[Suuankou tanki]] = double)
* 3 Red Tiles, Uradora, Kandora, Ippatsu allowed
* Kuitan & Atozuke allowed
* Min. Pts to Win: 30,000
* Extension into South (for East Only Match) / West (for Hanchan Match)  allowed.
* Tochuu Ryuukyoku allowed (including Kyuushu Kyuuhai, Suufon Renda, Suukaikan, Triple Ron, Suucha Riichi)
* Rinshan Pao allowed
* Yakuman Pao allowed
* No Renhou
 
==== 3-Player ====
* Starting Points: 35,000
* Kaeshi: 40,000
* Uma: [1st +20, 2nd +0, 3rd -20]
* Oka: On
* 2 Red Tiles, Uradora, Kandora, Ippatsu allowed
* Kuitan & Atozuke allowed
* Min. Pts to Win: 40,000
* Kita: On (North tile as Nuki Dora, no Furiten and Chankan, break Ippatsu)
* Scoring: Tsumo-loss
* Extension into South (for East Only Match) / West (for Hanchan Match)  allowed.
* Tochuu Ryuukyoku allowed (including Kyuushu Kyuuhai, Suukaikan)
* Yakuman Pao allowed
* No Renhou
 
=== Friendly Match Settings ===
* Players: 4 Players / 3 Players
* Round: Hanchan / East Only / 1-Round Only
* Action Time: 3+5s / 5+10s / 5+20s / 60+0s / 300+0s
* Starting Points: 25000 <small style="color:#999">(4P)</small> / 30000 <small style="color:#999">(4P)</small> / 35000 <small style="color:#999">(3P)</small>
* Kaeshi Points: 25000 <small style="color:#999">(4P)</small> / 30000 <small style="color:#999">(4P)</small> / 40000 <small style="color:#999">(3P)</small> / 50000 <small style="color:#999">(3P)</small>
* Min Pts to Win: 25000 <small style="color:#999">(4P)</small> / 30000 <small style="color:#999">(4P)</small> / 40000 <small style="color:#999">(3P)</small> / 50000 <small style="color:#999">(3P)</small>
* Uma: [+15/+5/-5/-15] <small style="color:#999">(4P)</small> / [+30/+10/-10/-30] <small style="color:#999">(4P)</small> / [+10/0/-10] <small style="color:#999">(3P)</small> / [+20/0/-20] <small style="color:#999">(3P)</small>
* Oka: On / Off
* Red Tiles: None / 2 <small style="color:#999">(3P)</small> / 3 <small style="color:#999">(4P)</small> / 4
* More Options: On / Off (Limited-time free)
** Kuitan: On / Off
** Minimum Han <small style="color:#999">(3P)</small>: 1 Han Shibari / 2 Han Shibari / 4 Han Shibari / Mangan Shibari / Menzen Shibari
** Wareme <small style="color:#999">(3P)</small>: On / Off
** Tips: On / Off
** Animations: On / Off
** Hand: On / Off
** Yakitori: On / Off
** Open Riichi: On / Off
** Shuugi: On / Off
** Chat: On / Off
 
== Ranking system ==
 
=== Rank Upgrade ===
{| class="wikitable" style="display:inline-table; margin-right:8px; white-space:nowrap;"
|-
! colspan=2 | Rank !! style="white-space:normal;" | Start !! style="white-space:normal;" | Rank Up !! Rank Down
|-
| rowspan=10 | '''Letter'''
| Novice || rowspan=9 | 0 || rowspan=4 | 40 || rowspan=10 style="text-align:center; color:#999; background:#eee;" | ×
|-
| D3
|-
| D2
|-
| D1
|-
| C2 || 50
|-
| C1 || 60
|-
| B2 || 70
|-
| B1 || 80
|-
| A2 || 100
|-
| A1 || 140 || 280
|-
| rowspan=10 | '''Dan'''
| 1st || 200 || 400 || rowspan=10 style="text-align:center;" | ✓
|-
| 2nd || 400 || 800
|-
| 3rd || 600 || 1200
|-
| 4th || 1000 || 2000
|-
| 5th || 1400 || 2800
|-
| 6th || 1800 || 3600
|-
| 7th || 2300 || 4600
|-
| 8th || 2800 || 5600
|-
| 9th || 3300 || 6600
|-
| 10th || 3800 || 7600
|-
| colspan = 2 | '''Legend''' || 7600
| style="color:#999; background:#eee;" | -
| style="text-align:center; color:#999; background:#eee;" | ×
|}
 
=== Rating ===
Players begin with a rating of 1500.  Players gain or lose rating points based on the Game's variance: Final points / 3.50 - R0 .  R0 is tied to opponent ratings. Maximum possible is +30, while the minimum is set to -20.
 
=== Lobbies ===


===Ranking system===
{| class="wikitable"
{| class="wikitable"
|+ Ladder point system
|-
|-
!colspan=2| Letter ranks !!rowspan=12| !!colspan=2|  Dan ranks
! rowspan=2 | Room !! rowspan=2 | Required Rank !! colspan=2 | Required Coins<br/>(Entry Limit / Entry Fee)
|-
! 4P !! 3P
|-
| Star || From Novice to 3rd Dan || 0 / 0 || 0 / 0
|-
| Moon || 1st Dan or above || 3000 / 500 || 3000 / 500
|-
| Sun || 4th Dan or above <ref group="note">Sun's Rating requirement Rate > 1700 is cancelled since ''December 16th, 2022''.</ref>
| 5000 / 1000 || 7000 / 1000
|-
| Galaxy || 7th Dan or above & Rate > 1800 <ref group="note">Galaxy's Rating requirement was Rate > 2000 before ''December 16th, 2022''.</ref>
| 10000 / 2000 || rowspan="2" | 14000 / 2000
|}
 
{| class="wikitable riichi-city-rank-table"
|-
|+ Rank Point Gains/Losses
|-
! rowspan=2 | Room !! rowspan=2 colspan=2 | Rank
! colspan=4 | 4P East !! colspan=4 | 4P Hanchan
! colspan=3 | 3P East !! colspan=3 | 3P Hanchan
|-
! 1st !! 2nd !! 3rd !! 4th !! 1st !! 2nd !! 3rd !! 4th
! 1st !! 2nd !! 3rd !! 1st !! 2nd !! 3rd
|-
! rowspan=13 | '''Star'''
| rowspan=10 | '''Letter'''
| Novice
| rowspan=13 | +40 || rowspan=13 | +20 || +10 || 0
| rowspan=13 | +60 || rowspan=13 | +30 || +15 || 0
| rowspan=13 | +30 || rowspan=13 | 0 || 0
| rowspan=13 | +45 || rowspan=13 | 0 || 0
|-
| D3 || +10 || 0 || +15 || 0 || 0 || 0
|-
| D2 || +10 || 0 || +15 || 0 || 0 || 0
|-
| D1 || +5 || 0 || +10 || 0 || 0 || 0
|-
| C2 || +5 || 0 || +10 || 0 || 0 || 0
|-
| C1 || 0 || 0 || 0 || 0 || 0 || 0
|-
| B2 || 0 || -5 || 0 || -5 || 0 || 0
|-
| B1 || -5 || -10 || -5 || -15 || 0 || 0
|-
| A2 || -10 || -15 || -15 || -20 || -10 || -15
|-
| A1 || -10 || -20 || -15 || -30 || -15 || -20
|-
| rowspan=3 | '''Dan'''
| 1st || -20 || -30 || -30 || -45 || -25 || -40
|-
| 2nd || -20 || -40 || -30 || -60 || -30 || -45
|-
| 3rd || -30 || -60 || -45 || -90 || -35 || -55
|- style="border-top-style:double;"
! rowspan=10 | '''Moon'''
| rowspan=10 | '''Dan'''
| 1st
| rowspan=10 | +70  || rowspan=10 | +35 || -20 || -30
| rowspan=10 | +105 || rowspan=10 | +50 || -30 || -45
| rowspan=10 | +50 || rowspan=10 | 0 || -25
| rowspan=10 | +75  || rowspan=10 | 0 || -35
|-
| 2nd || -20 || -40 || -30 || -60 || -30 || -45
|-
| 3rd || -30 || -60 || -45 || -90 || -35 || -50
|-
| 4th || -40 || -100 || -60 || -150 || -50 || -75
|-
| 5th || -45 || -105 || -70 || -160 || -60 || -90
|-
| 6th || -50 || -110 || -75 || -165 || -70 || -105
|-
| 7th || -60 || -185 || -90 || -280 || -80 || -120
|-
| 8th || -70 || -190 || -105 || -285 || -90 || -135
|-
| 9th || -75 || -200 || -115 || -300 || -100 || -150
|-
| 10th || -80 || -220 || -120 || -330 || -110 || -165
|- style="border-top-style:double;"
! rowspan=7 | '''Sun'''
| rowspan=7 | '''Dan'''
| 4th
| rowspan=7 | +130 || rowspan=7 | +50 || -40 || -100
| rowspan=7 | +195 || rowspan=7 | +75 || -60 || -150
| rowspan=7 | +90  || rowspan=7 | 0 || -60
| rowspan=7 | +135 || rowspan=7 | 0 || -90
|-
|-
| Novice || 0 -> 20 || 1dan || 0 -> 200
| 5th || -45 || -105 || -65 || -155 || -70 || -105
|-
|-
| D3 || 0 -> 20 || 2dan || 0 -> 400
| 6th || -50 || -110 || -75 || -165 || -80 || -120
|-
|-
| D2 || 0 -> 20 || 3dan || 0 -> 600
| 7th || -55 || -140 || -85 || -210 || -90 || -135
|-
|-
| D1 || 0 -> 20 || 4dan || 0 -> 800
| 8th || -60 || -150 || -90 || -225 || -100 || -150
|-
|-
| C2 || 0 -> 20 || 5dan || 0 -> 1100
| 9th || -65 || -160 || -100 || -240 || -110 || -165
|-
|-
| C1 || 0 -> 40 || 6dan || 0 -> 1400
| 10th || -70 || -170 || -105 || -255 || -120 || -180
|- style="border-top-style:double;"
! rowspan=4 | '''Galaxy'''
| rowspan=4 | '''Dan'''
| 7th
| rowspan=4 | +200 || rowspan=4 | +65 || -85 || -185
| rowspan=4 | +300 || rowspan=4 | +100 || -130 || -280
| rowspan=4 | +160 || rowspan=4 | 0 || -150
| rowspan=4 | +240 || rowspan=4 | 0 || -225
|-
|-
| B2 || 0 -> 40 || 7dan || 0 -> 1700
| 8th || -90 || -190 || -135 || -285 || -160 || -240
|-
|-
| B1 || 0 -> 60 || 8dan || 0 -> 2000
| 9th || -95 || -200 || -140 || -300 || -170 || -255
|-
|-
| A2 || 0 -> 80 || 9dan || 0 -> 2300
| 10th || -100 || -220 || -150 || -330 || -180 || -270
|- style="border-top-style:double;"
! Moon
| rowspan=3 colspan=2 | '''Legend'''
| 3 || rowspan=3 | 0 || rowspan=3 | -2 || rowspan=3 | -6
| 4 || rowspan=3 | 0 || rowspan=3 | -3 || rowspan=3 | -9
| 3 || rowspan=3 | 0 || -3
| 4 || rowspan=3 | 0 || -4
|-
|-
| A1 || 0 -> 100 (to dan ranks)|| 10dan || 0 -> 2700
! Sun
| 4
| 6
| 4 || -4
| 6 || -6
|-
|-
|colspan=2| ||colspan=2| Legend
! Galaxy
| 6
| 9
| 5 || -5
| 8 || -8
|}
|}


===Rating===
== Characters ==
Players begin with a rating of 1500.  Players gain or lose rating points based on the Game's variance: Final points / 3/5 - R0.  R0 is tied to opponent ratings.  Maximum possible is +30, while the minimum is set to -25.
{{main|List of Riichi City characters}}


===Lobbies===
=== Awakening and Affection ===
{| class="wikitable"
{| class="wikitable"
|+ Bonding Stage
|-
! rowspan=2 colspan=2 | Level !! colspan=2 | Friendship / Affection Points !! rowspan=2 | Notable Rewards
|-
! Upgrading !! Total Required
|-
| rowspan=5 | '''Bond'''
| Lv.1 || 100 || 100
| rowspan=5 |
|-
| Lv.2 || 400 || 500
|-
| Lv.3 || 500 || 1000
|-
| Lv.4 || ||
|-
| Lv.5 || 5000 ||
|-
| colspan=2 | '''Awaken'''
| colspan=2 | Awakening with required resources
|  * Awakened skin <br/><!--
--> * Extra emotes x2 <br/>
|-
| rowspan=2 | '''Affection'''
| Lv.1 || || || * Avatar frame of character
|-
| Lv.2 || || || * Title of character
|}
Each character has two preferred normal gifts, one preferred special gift and two disliked normal gifts.
* When gifting preferred normal gifts, each incrases points by +50 more, with a 10% chance to double the base stat.
* When gifting preferred special gifts, each incrases points by +50 more, with a 100% chance to double the base stat.
* When gifting disliked gifts, only 50% of the points will be awarded.
Mahjong sense can also be earned by playing games.
* Ranked match: 4P East +15 / 4P Hanchan +25 / 3P East +10 / 3P Hanchan +25
* Tournament: Official (+2/+3/+5/+15) / Custom +0
* Friendly Match: +0
== Items ==
=== In game currency ===
[[File:In-game currency.png|thumb|377x377px|In-game currency]]
==== Main currency ====
* Coins: General currency. Can be used to join in match, exchange items and awaken characters.
* Vouchers: Rare currency. Can be used to Gacha and purchase a variety of items.
* Outfit Token: Can be used to exchange alternative outfits.
==== Alternative currency ====
* Lucky Token: Performs a free Gacha draw.
* Stamp: Reward from Weekly Top Player Ranking. Can be used to exchange various items.
* TP: Reward from Official Tournaments by Riichi City Committee. Can be used to exchange various items.
* Gacha Stamp: Acquired automatically from each Gacha draw. Can be used to redeem characters and exchange most of the in-game items.
=== Gifts ===
Gifts can be given to a character to increase points to their mahjong sense.
{| class="wikitable sortable"
|+ Gifts
! Gifts !! Type !! class="unsortable" | Description !! Mahjong Sense
|-
| Mask || Green || Must-have face mask. || +10
|-
| Cola || Green || Ice-cold cola. || +10
|-
| Milk  || Green || Sweet milk. || +20
|-
| Ramen || Green || Ramen from a century-old restaurant. || +20
|-
| Sushi || Green || Delicious sushi. || +30
|-
| Milk Tea || Green || Popular milk tea. || +30
|-
| Green Tea || Green || Invigorating green tea. || +40
|-
| Cap || Blue || Low profile cap. || +40
|-
| Shoes || Blue || Retro shoes. || +50
|-
| Sukiyaki || Blue || Hot sukiyaki. || +50
|-
| Necklace || Purple || Limited edition necklace. || +60
|-
| Figurine || Purple || Exquisite figurine. || +60
|-
| Perfume || Purple || Elegant perfume. || +70
|-
| Barbecue || Purple || Sizzling barbecue steak skewers. || +70
|-
| Camera || Gold || Portable camera. || +80
|-
| Laptop || Gold || The latest laptop. || +80
|- style="border-top-style:double;"
| Omurice || Special || Nutrient-rich omurice. || +100
|-
| Sailor Uniform || Special || A lovely sailor uniform. || +100
|-
| Lolita Dress || Special || An elaborate Lolita dress. || +100
|-
| Tempura || Special || Crispy homemade tempura. || +100
|-
| Sakura Hand Fan || Special || A fan to breeze into spring. || +100
|-
| Matcha Pudding || Special || Bittersweet matcha pudding. || +100
|-
| Lipstick || Special || A luxury lipstick. || +100
|-
| Cat Doll || Special || The best cuddle buddy. || +100
|-
|-
| Star || Moon || Sun || Galaxy
| Strawberry Cake || Special || Sweet strawberry cake. || +100
|}
 
Alternatively, Gift Fragments can be obtained by recycling gifts. It can be used to exchange for Lucky Token and awaken a character.
 
{| class="wikitable"
|+ Gift Fragments
! style="text-align:left;" | Gift Type
| Green || Blue || Purple || Gold || Special
|-
! style="text-align:left;" | Fragments Reward
| 1 || 5 || 10 || 30 ||
|}
|}


==Tournament==
=== Awakening items ===
The following items can be used to awaken a character.
 
* Books: General awakening item. Most of the characters require them to awaken. Currently there're 6 types of Books:
** Book of Wisdom
** Book of Luck
** Book of Choice
** Book of Attitude
** Book of Judgement
** Book of Focus
* Item Fragment: Duplicate decorations will be converted automatically to Item Fragments. Can also be acquired by Gacha Stamps.
* Outfit Coupon: Duplicate characters will be converted automatically to Outfit Coupons. Can also be acquired by Gacha Stamps.
 
== Tournaments ==
 
=== Iikyokusen tournaments ===
Available at all times, players may participate in short tournaments centered around [[Ikkyokusen|ikkyokusen]] games.  These are short tournament brackets with just one hand per round.  The shortest is a two-stage bracket, where 1st and 2nd continue into a final.  The longer one is a three-stage bracket.
 
=== Grand prix tournaments ===
{{main|Riichi City Grand Prix}}
 
A daily grand prix is setup for a much longer tournament process.  Players can register via the automated tournament system to play for either Tournament Points (daily) or for Gacha Summon Tickets (weekend).
 
=== Custom tournaments ===
Custom Tournaments are created by players. Each player is allowed to create one casual tournament for free.
 
== References ==
<!-- <references/> -->
 
'''Notes'''
<references group="note"/>
 
== External links ==
 
==== General ====
{| class="wikitable"
|-
! Server || Global
|-
! Game Sites
| Main Page: https://www.mahjong-jp.com/ <br/> Game Entry: [https://apps.apple.com/app/id1578816591 App Store] / [https://play.google.com/store/apps/details?id=com.riichicity.happywoods Google Play] / [https://store.steampowered.com/app/1954420/_/ Steam] / Windows PC / Linux
|-
! Social Media
| Facebook: [https://www.facebook.com/Riichi-City-107331518266065 Riichi City] <small style="color:#999;"><EN></small> / [https://www.facebook.com/RiichiCity/ 麻雀一番街] <small style="color:#999;"><CHT></small> <br/> Twitter: [https://twitter.com/RiichiCity_JP 麻雀一番街【公式】] <small style="color:#999;"><JP></small> / [https://twitter.com/RiichiCity_KR 마작일번가 【한국 공식계정】] <small style="color:#999;"><KR></small> <br/> Bilibili: [https://space.bilibili.com/1581713441 麻雀一番街] <small style="color:#999;"><CHS></small> <br/> Weibo: [https://weibo.com/u/6004816928 麻雀一番街] <small style="color:#999;"><CHS></small>
|-
! Community
| Discord: [https://discord.com/invite/5z3Nw2rPNx 《麻雀一番街》Riichi City-Japanese Mahjong]
|}


==Characters==
==== Other Links ====
{{jpwiki|麻雀一番街}}
* [https://sites.google.com/view/howtoriichicity/home Guide to Riichi City]
: Guide written by [https://twitter.com/experimilk Experimilk]


==External links==
[[Category:Internet play]]
* [https://www.mahjong-jp.com/home Official site]
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