- Demonic Mahjong 26.8.31 Update Notes - 31 August 2026
This update fixes a range of issues affecting matches, character skills, Auto-Play, and the mobile experience, while also improving parts of the UI and text.Match & Progression ImprovementsFixed an issue where canceling Auto-Play after setting both game speed and Auto-Play speed to 1× would incorrectly change the speed to 6×.Fixed an issue where tile slots could appear blank after a scoring character used a skill to swap tiles.Improved Auto-Play: Tributes obtained during Auto-Play can now be sold automatically.Fixed an issue where the Ready button would not refresh after selecting a recommendation when a ready hand was available.Fixed an issue where, after a surrender prompt was triggered but not selected in the final stage, surrendering after a loss and triggering the Phoenix Egg could leave players unable to continue matches, with only shop entry and exit available.Fixed an issue wher…
- August 7 Update - 7 August 2026
Fixed an issue that prevented some Windows users from launching the game.The Mac version of the Heatwave Carnival DLC is now available.Other minor optimizations and bug fixes.
- Fix for Ditin Match Freezes and Solution to Missing Saves for Returning Players - 30 July 2026
Hello everyone, the latest version that was just released fixes the following issues:Fixed an issue where matches against Ditin could freeze.Other minor bug fixes and optimizations.Some returning players who played an earlier version of the game before September 2025 may find that their save data does not appear after launching the game. In most cases, the save data has not been deleted—the game is currently reading from a new Steam save directory.You can try migrating your old save data by following these steps:Go to the old save directory:C:\\Users\\YourUsername\\AppData\\LocalLow\\Boxed Lightning Games\\Demonic Mahjong\\SaveCopy the save files in this folder. In most cases, Slot0.json corresponds to Save Slot 1 in the game.Go to the new Steam save directory:Steam installation directory\\userdata\\YourSteamNumericID\\3444020\\remotePaste the save files from the old directory into the…
- The All-New Free DLC, Heatwave Carnival, Is Out Now! - 29 July 2026
One year ago, on July 17, Demonic Mahjong launched on Steam. We were excited, but also a little nervous: would anyone enjoy this strange Underworld mahjong game with its fondness for internet humor?To our surprise, just days after launch, the game reached Overwhelmingly Positive reviews on July 25. We have not stood still over the past year. Last September, the Ksitigarbha update introduced the new boss Ksitigarbha. This February, the free DLC The Snake & Horse added seven new characters, including King Taishan, Day Warden, Night Warden, and four Ghost Brides.And today, the all-new free DLC Heatwave Carnival is officially here. It is both our anniversary gift and the start of a new round we hope to share with you.Heatwave Carnival adds six new characters: Dragonvine, Sweetie, Monotropa, Lycoris, Mandra, and King Dushi; nearly 40 new Figurines and 15 new Patterns; a new Underworld area a…
- Voice Work and Scene Art Complete! DLC Launches July 29! - 29 June 2026
Hi everyone!We have some good news to share: Demonic Mahjong’s new free DLC, “Heatwave Carnival,” will officially launch on July 29!We recently wrapped voice recording for all of the new characters appearing in the DLC.For the Chinese voice cast, Zhenxin voices King Dushi and Dragonvine, Danaodai voices Mandra and Sweetie, and Dalu voices Monotropa and Lycoris.For the Japanese voice cast, 青木陽菜 voices Sweetie and Mandra, 立石凛 voices Monotropa and Dragonvine, 篠原なるみ voices Lycoris and King Dushi, 生田善子 voices scoring patterns.For the English voice cast, Melissa White voices Lycoris, Alexa Kaye voices Monotropa, Laura Lockwood voices Dragonvine, Kitty Jay voices King Dushi, Chloe Elmore voices Mandra, and Danielle Ferguson voices Sweetie. (At the voice recording session in Tokyo)At the same time, the scene art for the new DLC is also nearing completion. Today, we’d like to share an early look…
- Demonic Mahjong DLC “Heatwave Carnival” Test Live — 20% Off Soon! - 16 June 2026
Hello everyone! The brand-new DLC for Demonic Mahjong, “Heatwave Carnival,” is now available for testing!If you’d like to join the test branch, right-click Demonic Mahjong in your Steam Library, select “Properties” → “Betas” → “testbranch,” then wait for the game to finish updating.In addition to the 6 upcoming new characters—Dragonvine, Sweetie, Monotropa, Lycoris, Mandra, and King Dushi—this test version also adds 42 Figurines, 18 Relics, 2 Treasure Tile Spirits, and 15 brand-new Patterns.As the new DLC is still in development, some character models, animations, voice lines, and other content may have missing art assets or temporary placeholder assets. Thank you for your understanding.If you run into any issues during the test, please go to \ → \ in-game and submit the details so we can investigate and fix them. Thank you for your support!Regarding two questions many of you have been…
- The third character in the new DLC! She is inviting you to drink together! - 5 June 2026
Hello, everyone!Today, we are revealing the third character from the brand-new free DLC for Demonic Mahjong, “Heatwave Carnival”!In the previous update, we introduced the second DLC character: Dragonvine.This time, we are introducing the third brand-new character: Monotropa. Monotropa is a soul guide serving King Dushi, who governs “Indulgence” in the sweltering hell. She is always raising her wine glass, smiling as she invites others to drink, luring them into ruin amid clinking cups and flowing wine.Her skills are:Active Skill · ToastSell all your Tributes. For each Tribute sold, gain +3 extra Gold, and the Mult provided by this skill permanently increases by +5%.Passive Skill · RefillCan score. When scoring with a Straight / Straight Flush, randomly copy 1 Tribute. If you have no Tributes, randomly gain 1.So far, we have revealed the first three characters coming in the DLC: Lycoris,…
- New character arrives in new DLC for Demonic Mahjong! - 15 May 2026
Hello, everyone!Previously we officially announced that Demonic Mahjong will be launching a brand-new free DLC, Heatwave Carnival, this summer!This DLC is themed around a summer beach party. The Flaming Hell, which should have been a terrifying place in legend, has been given a completely different look—molten fire lights up the night sky, heat waves become the beat, and a Mahjong-themed beach party is about to begin in full swing!In our previous post, we introduced the first character coming in the new DLC: Lycoris.This time, we’re introducing the second brand-new character: Dragonvine. Dragonvine is a soul guide under King Dushi, responsible for “Lingering.” She greets everyone who approaches with a smile, yet before they realize it, she has already wrapped them in her grasp—never to leave again.Her skills are:\: Choose 2 tiles from your concealed tiles and turn them into random Mid T…
- A Brand-New Free Major DLC is coming! Heatwave Carnival Brings the Summer Hot! - 30 April 2026
Hello everyone!Demonic Mahjong has started a historic low discount of 18% off from April 26 to May 6!But beyond the discount, there is something even more important—Since the release of the brand-new version The Snake & Horse during this year’s New Year, we’ve received a great deal of attention and feedback from players.And today, we can finally make it official—We will be launching a brand-new DLC, Heatwave Carnival, in the middle of this year!This update will once again be a completely free major DLC, with a total content volume close to one-third of the base game.Heatwave Hell is the domain governed by King Dushi, one of the Ten Kings of Hell.Legend says it lies deep beneath the ocean, under the scorched rocks of the western sea—the fiercest and most restless inferno in the underworld, where flames burn without end and even the air seems charged with scorching fury. But in the world…
- March 23 Update: Bug fixes - 23 March 2026
Hello everyone, we released a small patch on March 23. The main fixes included:Added the Boss Figurines Indulgence and Recklessness to the high-difficulty random pool.Fixed an issue with separators in the settlement screen for overseas players.Optimized the timing and animations of some characters in the main menu.Fixed an issue where fighting Boss Meng Po could cause the game to freeze because Kong Upgrade could not be performed.Fixed an issue where tile faces could not be clicked while consuming Tribute or using character skills.Added a new Relic: Xuan Yuan Mirror (You can spend 100 Gold to change the Final Opponent.)Fixed an issue where characters could refresh skills infinitely.Fixed an issue where King Yama had no animation when entering Ready.Added visual effects for some Figurines.Adjusted the effect of the Figurine Dharma's Echo from x150% to +500%.
- Update on March 7: fixed a series of bugs on recent version - 7 March 2026
Hello everyone! Here’s a summary of issues fixed in this update:Matches & GameplayFixed an issue where tile score VFX in the Exposed Hand did not display during a matchFixed a softlock when fighting King Qinguang, which would persist even after re-entering the gameFixed abnormal hand display, including tile overlap/jitter and mouse-hover flickerFixed tiles overlapping in the Swap Zone after using a TributeFixed an issue where Boss King Taishan would not deal tiles after entering a matchFixed an exploit where King Taishan could use skills infinitely after filling the Swap ZoneFixed missing VFX for poisoned bonus tiles in handCharacters & AchievementsFixed an issue where Ghost Bride · Marionette could not be unlocked (achievement refresh mechanism optimized)Fixed an issue where Ghost Bride · Temptress’s starting relic pool incorrectly granted Character Tile-type relics (should be Bamboo T…
- The Demonic Mahjong Points Shop and Trading Cards are now live! - 13 February 2026
Hello everyone!Thank you very much for your support of Demonic Mahjong. Since the DLC launched, we’ve received a lot of feedback from players. In particular, the day-one update caused issues for some Steam Deck users. If you were affected, please contact us via email [email protected], and we’ll help resolve the problem.Aside from the Steam Deck issue, we will continue actively optimizing the game to bring everyone a better experience.The Demonic Mahjong Trading Cards and Points Shop are now available!Steam points shop:https://store.steampowered.com/points/shop/app/3444020The first batch in the Points Shop includes 8 animated avatars, 3 profile backgrounds, and 10 emoticons. If you’re interested, head over to the Steam Points Shop to check them out!Trading cards drop every 30 minutes of playtime.If you’ve newly joined the game, you’re very welcome to join our Discord community. Many…
- Updated on Feb 13 for Bug fixes - 12 February 2026
Hello everyone, in the newly released update, we have fixed a series of bugs and display issues:Fixed an issue where Aqi Horse-face copying 7 Bamboo (with Rat Spirit) caused the tile spirit to disappearFixed an issue where Marionette’s passive “Heterochromia” did not grant score or play the score animation upon winningFixed an issue where Marionette’s passive incorrectly added face value to honor tiles; it should only apply to suit tilesOptimized the trigger effect of the passives “Day Patrol” and “Night Patrol” to show the character instead of the skill cardFixed an issue where spirit descriptions were too wide in the English versionUpdated the active skill description of WitherFixed overlapping fonts in Japanese achievementsFixed the visual effects for King Taishan’s passive money gain and multiplierFixed an issue where concealed Kong and added Kong checks were required after using of…
- Fixed issues where the game was displayed as a "Beta" version on SteamDeck - 10 February 2026
Fixed an issue where the game incorrectly displayed as a "Beta" version on SteamDeck.Fixed an issue in the Collection page where certain cards could not be closed after being opened.Fixed an issue that prevented the "Banned/Ban Plan" menu from being opened. If you encounter issues with some characters being unavailable or abnormal progression, please email [email protected] and we will help you resolve the problem.
- On February 10, the free DLC “The Horse & Snake” will arrive—don’t miss it! - 9 February 2026
Hello everyone,Tomorrow (February 10), the major free DLC “The Horse & Snake” for Demonic Mahjong will be released! A new all-time low discount will also begin on February 13!See you on February 10!In addition, the mobile version of Demonic Mahjong has officially entered open testing in China.Unfortunately, this test is currently only available to players with a mainland China mobile phone number.At the same time, we are working hard on the development of the multilingual mobile version, and we hope to bring it to all of you as soon as possible.Thank you for your continued support!
- Free DLC The Horse & Snake will see you on Feb 10! - 4 February 2026
Hello everyone!The long-awaited major FREE DLC for Demonic Mahjong — The Horse & Snake — is here!Yes, you read that right. This is a large-scale FREE DLC!On February 10, we’ll see you in The Horse & Snake — don’t miss it!The Horse & Snake is themed around the Lunar New Year. “Snake” represents both the Lunar Snake Year that has just passed, and the Bamboo-focused playstyle in mahjong. “Horse” represents the coming new year, and in-game it also stands for Odd and Even tiles.As the name suggests, in this DLC, the Bamboo set receives a huge boost, and we’re also bringing many brand-new archetypes and strategies centered around Odd/Even tiles. Wishing everyone a joyful Lunar New Year and happy mahjong grinding!I、7 brand-new characters join the roster!Seven distinctive new characters arrive!They’re not only playable characters — each of them is also a powerful opponent standing in your way t…
- Demonic Mahjong New Content Preview! New Historical Low Price for Winter Sale! - 16 December 2025
Hey Mahjong Buddies, long time no see!Since the launch of the Ksitigarbha update last October, we’ve been racing to develop new content. We’re also fully committed to the mobile port, controller optimization, and Steam Deck adaptation—soon you’ll be able to play mahjong across even more platforms!First off, we’re excited to bring you a massive update in Q1 2026:The Underworld is welcoming 7 new companions:Minions: 4 Ghost Brides (Chilla, Misa, Wispie, Lila)Elites: Day Warden, Night WardenYamaKing: King TaishanAround 30 brand-new figurines are joining the fray. These will not only strengthen the Chow/Pung, Suit Tiles, and Soul Power playstyles, but also introduce two fresh builds: Shuffle and Odd-Even patterns.A batch of new relics will drop alongside them. These relics will not only amplify each character’s unique traits, but also play a pivotal role in different playstyle systems.We’ll…
- September 30 update: fixed bugs including Meng Po's milk tea. - 30 September 2025
Added map viewing functionality to the route selection page after a battle loss.Fixed the issue where BGM would overlap when returning to the main interface from Chapter 4.Adjusted the default Figurine rewards for Ksitigarbha's character preset: Changed "Dragon-tailed Fox Immortal" to "Admiring Strength Ghost"; Changed "Charging Turtle" to "Gem Goblin"; Changed "Poison Armor Turtle" to "Five-colored Divine Ox"; Changed "Shrinking Turtle" to "Pug".Optimized multilingual adaptation for some parts.Optimized sound effects for death animations.Optimized sound effects for tile hovering and discarding.Fixed the issue where rapid consecutive clicks during a Kong Upgrade, followed by an "Out with Supplement Tile," could cause the High-Scoring Patterns animation to freeze.Fixed the issue where Coina's Boss Figurine \ was not taking effect.Optimized the counting visual effects for White Dragon, Gh…
- Update on Sep 29: English Theme Song and English voice-over Arrive! - 29 September 2025
Hello everyone! Demonic Mahjong brings you a brand-new version update !The long-awaited Englishtheme songs are now officially online, with English voice-over also unlocked. This update also introduces a random character selection mode, new shortcut keys such as ESC for exit, S for Tenpai, and Space for discard, plus King Ksitigarbha’s death animation and BOSS victory/defeat sound effects. We’ve also fixed multiple skill and settlement issues, and optimized animations and interaction details.However, we have currently identified a bug in one of Meng Po's milk teas, which causes the map interface to freeze. We will release an update on September 30 to fix this issue.Below are the detailed items of this update:Newly Added ContentAdded a random character function on the character selection screenAdded English dubbingAdded English and Japanese versions of the main interface background musicA…
- September 16 Update: New Relics and Battle Music Added and Bugs Fixed - 16 September 2025
Hello everyone! A brand-new version of Demonic Mahjong is now live! This update adds the new relic "Full Moon Lamp" and exclusive battle music for fights against Ksitigarbha. It also fixes partial abnormal display issues in matches, multiple bugs, and optimizes the skill logic and details of some characters~Below are the detailed items of this update:New Additions:Added the new relic "Full Moon Lamp".Added exclusive battle music for fights against Ksitigarbha.Bug Fixes:Fixed the issue where Soulfern could be used infinitely.Fixed the incorrect calculation issue of "Shun Ling" granted by Ksitigarbha’s skills.Fixed the issue where Ksitigarbha (Boss)’s Charge Buff took effect on the player.Fixed the issue where scene resources disappeared during the Boss victory animation.Fixed the issue where the "Gang" button did not appear correctly due to Ksitigarbha’s skills.Fixed the issue where Ksit…
