Product Lines
San-X released the first Sumikko Gurashi products in September 2012, which included stationery and plush toys. A variety of merchandise followed, such as clothing, kitchenware, and bags. The Sumikko Gurashi Collection is a series of plush items, consisting of palm-sized plush dolls and plush dollhouses, furniture, outfits, etc. in size for the dolls. As of 2018, it includes over 300 different items. As of 2019, San-X had a team of about 25 people working on Sumikko Gurashi product development. As of 2023, 60 different design themes had been released.
The first Sumikko Gurashi books were released in 2014, and as of 2018 over 30 different books have been released, including story books, fan books, activity books, and mooks with enclosed items. There have also been several Nintendo 3DS and Nintendo Switch games, and several mobile games, including Sumikko Gurashi—Our Puzzling Ways and SumiSumi.
According to San-X, in 2015, Sumikko Gurashi stood for 30% of sales of their original merchandise or about 5 billion yen. As of 2019, sales of Sumikko products were worth about 20 billion yen a year. Eight million plush toys and 3 million books had been sold. Sumikko Gurashi was ranked #10 in 2016, and #5 in 2018 on character popularity charts from Bandai, based on surveys of parents of children under 12 in Japan. In 2019, Sumikko Gurashi won the Grand Prize at the Japan Character Awards.