MIXI: how a social network found a second life in games and a third in sports

MIXI has already reinvented itself twice. The company first became famous through one of Japan’s defining early social networks. When that business stopped being the centre of growth, the mobile game Monster Strike created an even larger second act.

By 2026, MIXI was deliberately trying to build a third. Management describes the company as entering a “Third Founding” built around digital entertainment, lifestyle services and sports.

That makes MIXI one of the more unusual survivors of Japan’s early internet era. The business has moved from online recruitment to social networking, then mobile gaming, and now into family services, sports and broader consumer entertainment without abandoning the idea that shared experiences can be a business.

The company began with online recruitment

The business that became MIXI started in 1997 with Find Job!, an online recruitment service created by Kenji Kasahara. The company itself was incorporated as E-Mercury in 1999.

At the time, Japan’s commercial internet was still young. Online recruitment gave the company experience attracting users, building web services and monetising a digital audience before social networking became its defining product.

The breakthrough came in February 2004 with the launch of mixi, a social-networking service built around profiles, diaries, communities and invitation-based connections.

The service grew rapidly and became one of Japan’s most recognisable internet platforms during the years before smartphones reshaped social media.

The mixi social network became the company identity

As the social network grew, E-Mercury increasingly became identified with its flagship product. The company changed its name to mixi, Inc. in 2006 and listed on the Tokyo Stock Exchange’s Mothers market that September.

The platform benefited from the community structure that defined early Japanese social networking. Users joined interest groups, kept diaries and communicated through a service that felt more closed and personal than the open web.

Advertising and paid services supported the business, but the success also created concentration risk. The company had become heavily dependent on a social-networking product that was vulnerable to shifts in consumer behaviour.

Those shifts arrived quickly as smartphones, messaging apps and newer social platforms changed how Japanese users communicated online.

Monster Strike created the second act

MIXI’s most important reinvention came in 2013 with Monster Strike. The mobile game combined action, collection mechanics and cooperative play around a simple touch-screen control scheme.

The timing was critical. Smartphones had created a huge new games market, and Monster Strike found a large audience in Japan. It became a long-running franchise rather than a short-lived hit.

The game’s success transformed the company’s financial profile. MIXI was no longer relying primarily on the social network that carried its name. Mobile entertainment became the dominant growth engine.

Monster Strike also expanded beyond the game itself into animation, events, merchandise and other media, giving MIXI an intellectual property it could manage across several entertainment formats.

The company learned not to depend on one platform again

Monster Strike solved MIXI’s immediate growth problem, but it also repeated the concentration risk of the earlier social-network era. A single product once again became central to the company.

Management responded by expanding into additional consumer services. The portfolio grew to include family-oriented apps, sports businesses and new entertainment products.

This strategy did not mean abandoning Monster Strike. The game remained a major source of revenue and cash flow, but MIXI increasingly used that base to invest in businesses with different audiences and revenue models.

The diversification effort became more visible as the company entered sports and lifestyle services through both internal development and acquisitions.

Sports became a serious business rather than a side project

MIXI expanded into professional sports through ownership and operating interests that connected digital fan communities with physical events.

The company became involved with FC Tokyo and other sports properties, while Tipstar added a digital betting and entertainment layer around public sports such as bicycle and motorcycle racing.

This created a very different relationship with consumers from mobile gaming. Sports revenue can come from tickets, sponsorship, digital engagement, merchandise and betting-linked services rather than only in-app purchases.

The expansion also fitted MIXI’s broader theme of building communities around shared interests. A football club, a racing service and a mobile game are different products, but all depend on attracting people who return repeatedly around an experience.

Family services widened MIXI beyond entertainment

MIXI also built a lifestyle-services portfolio aimed at longer-term daily use. Family Album, known in Japan as Mitene, became one of the most important examples.

The service lets families privately share photos and videos, creating a more focused use case than a broad public social network. It has expanded internationally and gives MIXI exposure to subscription and commerce opportunities outside gaming.

This part of the portfolio shows how the company has carried lessons from its original social-network business into newer products. The emphasis remains on relationships and communities, but the service is built around a specific need rather than a general social graph.

The MIXI name returned in capital letters

The company changed its English name styling to MIXI, Inc. in 2022. The update came as management tried to make the corporate identity broader than the original mixi social-network brand.

That distinction had become increasingly important. The lower-case mixi name still referred to the historic social service, while MIXI represented a group spanning games, sports and lifestyle products.

The rebranding therefore reflected a real strategic shift rather than a cosmetic change. The company was trying to establish an identity independent of both the old social network and Monster Strike.

The “Third Founding” is an attempt to build several growth engines

By 2026, MIXI was describing its strategy as a Third Founding. The phrase acknowledges the two earlier eras that defined the company: the rise of mixi and the rise of Monster Strike.

The goal now is to create a business that does not depend on one breakthrough service. Digital entertainment remains important, but sports and lifestyle products are expected to contribute more over time.

This is a harder model to manage than a single-product company. Different businesses require different expertise, capital and operating rhythms. A professional sports club cannot be run exactly like a mobile game, and a family-photo service has different trust requirements from a betting product.

The potential advantage is resilience. If several consumer businesses develop durable audiences, MIXI becomes less exposed to the lifecycle of any one franchise.

Monster Strike still funds much of the transition

Even during the Third Founding, Monster Strike remains central to MIXI. The game has operated for more than a decade and continues to receive new content, collaborations and live events.

Long-lived mobile games can produce significant cash flow when their communities remain active, but maintaining that position requires constant live operations. Players expect events, characters, balance changes and new reasons to return.

MIXI therefore faces the same challenge as other companies built around mature game franchises: use the existing hit to finance new growth without neglecting the product that still supports the business.

MIXI’s history is a story of replacing its own centre of gravity

Few internet companies survive the decline of the product that first made them famous. MIXI has already done it once.

The company began with online recruitment, became synonymous with social networking, then rebuilt itself around Monster Strike when smartphones changed the market. The third phase is more ambitious because it is not based on one obvious replacement product.

Instead, MIXI is trying to create a collection of businesses around entertainment, sport and relationships. That strategy may produce a more balanced company, but it also requires management to prove that the group can operate several very different consumer businesses well.

The important point is that MIXI is no longer simply the company behind an old social network or one successful mobile game. Its history shows a business repeatedly willing to replace the source of growth that defined the previous era.