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Monster Strike

Monster Strike remains MIXI's flagship mobile game, with its production workflow now cut from 21 days to about 3 days through AI video generation, and its UI fonts set to change in an upcoming update. MIXI's leadership continues to frame the game's 4-player co-op design as the foundation for the company's pivot into sports betting.

Synthesized from 4 Yomimono stories · updated 3d ago

MIXI's partnership with Runway, announced in July 2026, has already changed how Monster Strike content is made. The company uses Runway's AI to produce Monster Strike videos, reducing a 21-day process to about 3 days. The same AI is used for corporate brand movies, visual proposals, and in-app effects, and the partnership will deploy Runway's AI across MIXI's entire organization for games, animations, and interactive experiences.

In mid-July, MIXI CEO Hiroki Kimura gave two talks at GAME FUTURE SUMMIT 2026 tracing the company's 27-year path from social network to mobile game to sports betting. He described Monster Strike's 4-player co-op model as inspired by Monster Hunter's viral structure, and said the game's social referral mechanics were adapted from MIXI's social network roots. Kimura also discussed failed expansions in China and the US, and the current India strategy built on anime collaborations and the absence of Chinese competitors.

Kimura framed the pivot to sports betting through the TIPSTAR app as a response to the limits of free-to-play games and market saturation, aiming to replicate gacha's festival-like excitement. In August, Bandai Namco announced font changes for the arcade version of Taiko no Tatsujin, and similar changes are appearing in Monster Strike's upcoming UI update. The reason for the font changes was not given, but observers connect them to the recent pricing overhaul of the font subscription service LETS.

Key facts

AI video production partnership
MIXI partnered with Runway for AI video production, cutting Monster Strike video workflow from 21 days to about 3 days.
Runway AI usage
Runway's AI is used for Monster Strike videos, corporate brand movies, visual proposals, and in-app effects.
Deployment scope
The partnership will deploy Runway's AI across MIXI's entire organization for games, animations, and interactive experiences.
Co-op design inspiration
Monster Strike's 4-player co-op design was inspired by Monster Hunter's viral structure.
Global expansion struggles
MIXI faced struggles in global expansion in China and the US.
India strategy
The current India strategy leverages anime collaborations and the absence of Chinese competitors.
Pivot to sports betting
Kimura described the move to sports betting as a response to F2P market saturation, with TIPSTAR replicating gacha's festival-like excitement.
UI font change
Monster Strike's upcoming UI update will include font changes, similar to those announced for Taiko no Tatsujin.

Timeline

Synthesized by Yomimono from the cited Yomimono stories below, each itself sourced, then editorially reviewed. Every fact links the story it came from.

Facts

Noted
Similar changes are appearing in Monster Strike's upcoming UI update. · 2026-08-08
Noted
MIXI already uses Runway's AI to produce Monster Strike videos, cutting a 21-day process to about 3 days · 2026-07-01

Connections

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All coverage

Aug 8

Taiko no Tatsujin Font Change Raises LETS Pricing Fallout Questions

Bandai Namco announced that the arcade version of Taiko no Tatsujin will update some of its in-game fonts on August 19. The reason was not given, but observers suspect a connection to the recent pricing overhaul of the font subscription service LETS. Similar changes are appearing in Monster Strike's upcoming UI update.

Jul 19

MIXI CEO Details Three Paradigm Shifts From Monster Strike to Sports Betting

In a talk at GAME FUTURE SUMMIT 2026, MIXI CEO Hiroki Kimura reflected on the company's three paradigm shifts: from social network to mobile game to sports betting. He detailed how Monster Strike's 4-player co-op design was inspired by Monster Hunter's viral structure, the struggles of global expansion in China and the US, and the current India strategy leveraging anime collaborations. Kimura also explained the pivot to sports betting through TIPSTAR, citing the limits of F2P games.

Jul 17

MIXI CEO Traces 27-Year Path from SNS to Games to Sports Betting

At GAME FUTURE SUMMIT 2026, MIXI CEO Hiroki Kimura recounted his 27-year career, from launching Monster Strike to pivoting to sports betting. He detailed how the game's viral 4-player co-op model, inspired by Monster Hunter, was adapted to the social referral structure of MIXI. He also discussed failed US and China expansions and the current India strategy using anime IP and the absence of Chinese competitors. Kimura described the move to sports betting as a response to F2P market saturation, with the TIPSTAR app replicating gacha's festival-like excitement.

Jul 1

Mixi Partners With Runway for AI Video Production, Cuts Monster Strike Workflow to 3 Days

MIXI announced a strategic partnership with video generation AI company Runway. MIXI already uses Runway's AI to produce Monster Strike videos, cutting a 21-day process to about 3 days, and to create corporate brand movies, visual proposals, and in-app effects. The partnership will deploy Runway's AI across MIXI's entire organization for games, animations, and interactive experiences.