Seisho Tech is a game development and publishing company headquartered in Japan, delivering casual games across Asia, Latin America, and Europe.
A cosmic deckbuilding strategy card game
Stardust Shuffle is a single-player strategy card game set in a colorful cosmic world. Build your deck, make smart tactical decisions, and discover creative combinations as you progress through a series of increasingly challenging rounds.
Each run offers new opportunities to experiment with different deck styles, card effects, and strategic paths. Build powerful decks, discover unique card synergies, and conquer increasingly difficult challenges in a stylish cosmic card adventure.
Get It Free
Everything that makes Stardust Shuffle unique
Fast-paced decision making with deep deckbuilding strategy. Build your perfect hand every run.
Synergy-based card combinations that reward planning and experimentation. Discover powerful combos.
A progressive challenge system designed for replayability. Each run is a unique journey to master.
Stylized cosmic visuals with bold art direction and arcade-inspired flair that brings every card to life.
Multiple deck themes with different strengths and playstyles. Choose your strategy and adapt.
A pure single-player experience focused on skill, strategy, and adaptation. Play at your own pace.
A peek inside the cosmic card universe





Game development and publishing from Japan
Seisho Tech Co., Ltd.
Japan
Game development & publishing across Asia, Latin America, and Europe