Tokyo, Japan, March 17, 2021 — Double, a developer of applications using blockchain technology, and Square Enix are pleased to announce that they will begin collaboration on the development of content using blockchain technology.


Based on the corporate philosophy of “to spread happiness across the globe by providing unforgettable experiences,” Square Enix is a provider of diverse and high-quality entertainment content and services, including games, amusement, publishing and merchandising, with a focus on intellectual property such as Dragon Quest and Final Fantasy.

Double was established in April 2018 as a company dedicated to game development in the blockchain technology domain. The world’s No.1 blockchain game, My Crypto Heroes, has now earned a total of 26,033 Ether (ETH). In addition, it has been providing blockchain game development support programs, as well as collaborating with Japanese IPs, blockchain games and other projects.

Purpose of the partnership

Nonfungible tokens, which utilize the tamper-resistance characteristics of blockchain technology, can be used to prove digital assets that are unique in the world. By utilizing the characteristics of NFTs, users will be able to own digital data in the same way as physical objects, bringing in a huge wave of innovation. In this alliance, we will seek to develop businesses that will maximize the value of content by utilizing NFTs. 

Details of the partnership

Sales and system development of NFT digital stickers using the “Million Arthur” IP.

Future prospects

We would like to discuss the creation of new content (business models) and use cases of blockchain technology.

“Blockchain technology has been attracting attention as a means to provide digital entertainment content with value other than currency. We are pleased to start the development of  NFT digital assets services using our IP and hope to contribute to the creation of new value and the future of digital assets from this partnership.”

– Keisuke Hata Square Enix NFT digital sticker business manager

“In the blockchain field, which is now attracting a lot of attention from major global companies, NFTs are the most popular now. NFTs can be programmed with smart contracts, which can be used to add a variety of business models and content ecosystems to digital items. I am convinced that adding innovation elements such as NFTs to Japanese IP will contribute to further value expansion.”

– Nobuhiro Ueno, CEO of Double 

A nonfungible token is a term describing a non-replaceable token that is expected to have use cases ranging from game characters, items and trading cards to the digitization of art and rights.

About Double

Double was established on April 3, 2018, by people who have expertise in the development and operation of numerous games (mobile social games, PC online games, home video games, etc.) and platforms, as well as in blockchain technology and finance.

About Square Enix 

Square Enix develops, publishes, distributes and licenses Square Enix®, Eidos® and Taito® -branded entertainment content around the world. The Square Enix Group includes a global network of leading development studios and boasts a valuable portfolio of intellectual property, including Final Fantasy®, which has sold over 159 million units worldwide; Dragon Quest®, which has sold over 82 million units worldwide; Tomb Raider®, which has sold over 81 million units worldwide; and the legendary Space Invaders®. Square Enix is a Japan-based, wholly owned subsidiary of Square Enix Holdings.