Japan-based independent developer and publisher sasoriken-games has opened the Steam store page for Monsters & Banknotes, a single-player "underworld × monster trading" simulation for Windows PC, built around breeding creatures and running a backstreet shop. Release is planned for Q1 2027.
Players borrow money to open a monster shop in a rain-soaked backstreet. They purchase and breed creatures, assess bloodlines, raise valuable specimens and negotiate sales based on each customer's needs. The game features 141 species, 69 mutations and hidden special pairings.
Arena duels can raise a monster's value, and a grand auction takes place once per in-game year. Selling a monster does not erase it from the world: it continues living with its new owner and can return through tournament appearances or events. Organized-crime demands complicate the shopkeeper's ambitions.
The game features pixel-art characters in a dimensional city and text in Japanese, English, Simplified Chinese, Traditional Chinese, Korean and Russian.
FACT SHEET
Title: Monsters & Banknotes (Japanese: 魔物と紙幣)
Developer / publisher: sasoriken-games
Platform: Windows PC (Steam)
Genre: Monster breeding / shop management simulation RPG
Release window: Q1 2027 (specific date TBA)
Status: Steam store page live; wishlist registration open
Steam / wishlist: https://store.steampowered.com/app/5549520/?l=english
Official game page: https://sasoriken-games.com/games/monsters-and-banknotes/
Press kit (screenshots, trailer, logos): https://sasoriken-games.com/press/monsters-and-banknotes/
Trailers on YouTube:
• Full trailer (English): https://youtu.be/kluYAam7JtU
• Short teaser (Japanese, approx. 40 seconds): https://youtu.be/ALDQHdkkaVE
• Full trailer (Japanese): https://youtu.be/bBF5Sj_3LdU