Gensokyo is overflowing with snacks! A roguelike twin-stick shooter starring Rumia where you fight using the power of snacks and items. Players gave Yoiyami Biscuit a 95% positive score. Released October 26, 2025. Top tags include Action, Action Roguelike, Twin Stick Shooter, Bullet Hell, 2D, Cute, Top-Down, Early Access, Fantasy, and Indie.
Gensokyo is overflowing with snacks! A roguelike twin-stick shooter starring Rumia where you fight using the power of snacks and items.
Developed by tripper_room, 以絵会友(ikaikaiyuu) · Published by Mediascape Co., Ltd.
Player Review Breakdown
Yoiyami Biscuit has about 122 positive and 6 negative player reviews out of a total 128. We'll add a detailed breakdown here when there are more reviews.
95%
positive of 128 player reviews
Full Game Details
From the Devs
A strange yet succulent incident has begun... Gensokyo is overflowing with snacks! A roguelike twin-stick shooter Touhou Project fangame makes its debut on Steam!
Fight using the power of snacks!
Use your danmaku-firing snacks to mow down hordes of enemies. All the different snacks have different upsides and downsides, and will level up and grow stronger as you battle with them! Rumia can also eat snacks to grow stronger permanently, additionally gaining that snack as a passive attack! Eat snacks to become stronger, but be careful not to overeat and get sleepy...!
Over 100 different items!
Once a battle ends, it's time to go shopping! There are a ton of different items to aid Rumia in her journey. There are items that simply raise your stats, ones that summon battle partners that block bullets, and even ones that treat other items like you have two of them...!? There's a whole variety pack of items to choose from, but don't forget to pick ones that synergize with your other items... and your snacks too, of course!
Turn the tables with talismans!
Spirit Strike Talismans can be used in battle and offer a wide range of helpful effects, such as dealing big damage and blasting away enemies, or buffing Rumia for a period of time. Depending on your inventory of items, you might even find your battle tactics revolving around your talismans!
Will Gensokyo ever go "snack" to normal?
Snack Fountains have suddenly appeared around Gensokyo, and territory struggles have erupted around them... yet, nobody seems all that concerned!? Entering an event space lets you take a look at how the other residents of Gensokyo are doing, and maybe even offer them some help! Maybe you'll figure out something about the ongoing incident, too?
The biscuits can get harder!?
Change the game's Biscuit Hardness to make things easier or harder! You'll unlock harder and harder difficulties as you keep winning runs. But don't worry — you can always make things easier if you feel like the game is too difficult!
