
Game Overview
Riichi mahjong becomes a colorful supernatural showdown when more than 130 Touhou Project characters bring their personalities and powers to the table. TOUHOU GENSOU MAHJONG turns the traditionally thoughtful four-player tile game into something far less restrained, placing familiar heroines, rivals, and oddballs from Gensokyo across stages inspired by the series’ long history. The tone can be seriously competitive one match and gloriously chaotic the next, depending on the table rules and the characters involved. Fans get a substantial crossover celebration, while newcomers receive a lively gateway into Touhou’s huge cast.
Matches follow the foundation of Japanese riichi mahjong: players draw and discard tiles, assemble legal hands, read opponents’ discarded tiles, and chase high-scoring combinations before someone else wins. Tables support three- or four-player formats, and the usual tactical tension of calling tiles, declaring riichi, managing risk, and defending against a potential ron remains central. Character-specific abilities can bend the normal flow of a round, creating chances to manipulate situations that would otherwise be decided purely by tile luck and calculation. Twenty themed locations add further twists through alternate rulesets, ranging from standard competitive conditions to deliberately absurd house-rule variants that change how hands, scoring, or round objectives play out.
Its biggest strength is the amount of variation layered over a recognizable mahjong ruleset. A huge roster, dozens of visual interpretations from contributing artists, and a broad musical selection give each match the feel of a fan-made festival rather than a dry digital board game. Unlike a straight simulator such as Mahjong Soul or more formal riichi clients, it welcomes unpredictable powers and novelty rules without abandoning the satisfaction of building a clever hand. Dedicated mahjong players who want a less rigid alternative will find plenty to learn, while Touhou fans and casual groups are likely to enjoy it most when they embrace the chaos rather than treat every table as a tournament.
Screenshots
Installation
- Click the green button below to be redirected to UploadHaven.
- Wait 15 seconds, then hit “Free Download.” (Free downloads may be slower — upgrade to UploadHaven Pro for faster speeds.)
- Once downloaded, right-click the .zip file and choose “Extract to TOUHOU GENSOU MAHJONG.” (You’ll need 7-Zip for this.)
- Open the extracted folder and run the game as administrator.
- Enjoy! 🎮 If you see missing DLL errors, check the _Redist folder inside and install what’s needed.
System Requirements
- Requires a 64-bit processor and operating system
- OS: Windows 10, 11 (x64)
- Processor: Core i5 or Ryzen 5 or equivalent
- Memory: 8 GB RAM
- Graphics: GeForce GTX 1060, Radeon RX 570 or equivalent
- DirectX: Version 11
- Storage: 2 GB available space
- Sound Card: with stereo output
Setup Guide & Troubleshooting
How do I fix missing DLL errors for TOUHOU GENSOU MAHJONG (v1.2.6)?
After extracting TOUHOU GENSOU MAHJONG (v1.2.6), navigate to the _Redist or _CommonRedist folder inside the game directory and install DirectX, Vcredist, and any other dependencies included.
What should I do if the downloaded file is corrupted?
The full archive is 1.29 GB — make sure your download completed fully before extracting. Use 7-Zip to extract the files. If you still see a "file corrupted" error, re-download and try again.
Why should I run the game as administrator?
Right-click the game executable and select "Run as Administrator" to avoid save file issues and permission errors. This is especially important on the first launch.
How do I update my GPU drivers for this game?
The game won't launch — what should I try?
This game requires Version 11. Try running in compatibility mode, install the latest DirectX runtime, or install the All-in-One VC Redist Package.
My antivirus is blocking the game — is it safe?
Antivirus false positives are common with pre-installed games. Temporarily pause your antivirus during extraction to prevent it from quarantining game files. You can re-enable it after the extraction completes.