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About Demonic Mahjong
Demonic Mahjong mixes classic Mahjong scoring with a roguelike deck‑building loop. In each run you arrange tiles to earn points while recruiting spirit allies, relics, and offerings that shape your strategy. The game is single‑player on Windows and macOS and supports Steam achievements, cloud saves, and family sharing. Beyond the score, you travel through an underworld filled with events and 24 distinct bosses; choices made in the events influence later battles, and each boss defeat is marked by a special animation.
01 / THE GUIDE
Gameplay Basics
Scoring follows basic Mahjong rules, allowing players familiar with Mahjong to apply known patterns right away. The description also notes that newcomers can enjoy the game without prior Mahjong experience, as the deck‑building layer guides tile use.
Tile spirits and tile variants enhance ordinary Mahjong tiles, adding effects that can alter how scores are achieved, creating a hybrid of puzzle and strategy within each hand.
- Form high‑scoring Mahjong patterns early to build momentum.
- Try different tile variants to see what effects they add.
02 / THE GUIDE
Deck‑Building System
The game offers 100 unique spirit allies, each with an active and a passive skill that influence tile play. Players also collect 100 relics that grant permanent buffs, expanding strategic options.
In addition, 35 offerings provide special abilities to manipulate the hand or deck and improve luck. Together these elements let players craft a personalized underworld team and upgrade character skill levels.
- Balance spirit allies with relics for both offensive and defensive coverage.
- Use offerings when you need a specific hand manipulation.

03 / THE GUIDE
Events and Choices
The journey includes 10 regular events and 90 special events, each presenting decisions that influence later battles. Examples such as visiting Granny Meng’s Tea House or helping a shy ghost illustrate narrative variety.
Your actions and choices in these events have a significant impact on the subsequent battles, making each run feel fresh based on player decisions.
- Prioritize events that reward new spirits or relics for long‑term benefit.
- Observe how choices alter later encounters to refine your strategy.
04 / THE GUIDE
Boss Battles
There are 24 unique bosses, including Granny Meng, Ox‑Head and Horse‑Face, each equipped with active and passive skills. Studying these abilities is essential for forming winning tile combinations.
Defeating a boss triggers special celebration animations, providing visual feedback on progress.
- Analyze boss skill patterns before committing powerful relics.
- Save high‑impact offerings for moments when boss abilities threaten your combo.
05 / THE GUIDE
Characters and Skills
Every character possesses a unique active skill and a passive skill, allowing players to tailor tile combinations around individual strengths. Skill levels can be upgraded, and an affinity system is planned for future depth.
These abilities form the backbone of distinct gameplay styles, encouraging experimentation with different character line‑ups to discover effective strategies.
- Match character active skills with relic effects for amplified results.
- Upgrade passive skills early to establish a reliable foundation.





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