Mahjong Expedition
Release date: May 7, 2025
Developers: COSO
Publishers: COSO
Genres: Casual, Indie, RPG, Simulation, Strategy
Categories: Single-player, Steam Achievements, Steam Cloud, Family Sharing
Supported languages: Simplified Chinese, English, Russian, Japanese, Traditional Chinese

Gameplay: Calculate scores based on tile patterns and bonuses after each winning hand, using 'Blood River' rules. Play until reaching the target score or exhausting draw attempts. Progression: After clearing Chengdu, unlock another city. Conquer each city to gradually illuminate the world. Features: Authentic Mahjong rules—only winning hands score. Rogue-like mechanics ensure unique runs. Unlock 100 global cities, each with distinct rules and mechanics. Higher difficulty clears expand a city's influence zone, allowing free unlocks within it. Collect and upgrade characters with unique skills to test your strategy. Equip artifacts to enhance characters' power. Attach effects to individual tiles for deeper customization. Upgrade tile patterns to boost their potency. Planned Updates: New character designs New artifact designs New city mechanics New challenge tile decks