Konami and Cygames have called a truce in their high-profile dispute over Umamusume: Pretty Derby, ending a legal standoff that began in March 2023 and cast a shadow over one of Japan’s most fervently followed mobile franchises. Both companies announced that they have reached a settlement and pledged mutual respect for each other’s creative works. 
While the precise terms are confidential, the outcome keeps the gates open for players to continue training their favorite horse-girls without interruption.
What actually happened
Konami Digital Entertainment alleged that Umamusume: Pretty Derby infringed on 18 of its patents and initially sought more than 4 billion yen (roughly $26 million at then-current exchange rates), along with an injunction that would have halted production, distribution, and use of the game. Cygames pushed back hard, filing invalidation trials against all the patents at issue. Today’s settlement ends that clash. Importantly, Cygames has reiterated that it remains confident no infringement occurred, emphasizing that the resolution is primarily about safeguarding long-term enjoyment for players.
Why this matters for players
For fans who log in daily, the practical takeaway is simple: Umamusume continues. Live ops in mobile games rely on predictable schedules – events, training cycles, banner rotations, and seasonal updates. A court-ordered pause would have upended those rhythms. The settlement averts that scenario. You can still build teams around race icons like Special Week and Mejiro McQueen, min-max training routes, and compare race times with friends. The servers stay on; the training plans stay intact.
The patent angle, in plain language
Game patents can cover everything from UI flows and data handling to progression loops and training or matchmaking systems. Konami has long experience in sports management and simulation design, so it isn’t surprising that overlaps – real or perceived – would prompt a defense of its portfolio. Cygames, for its part, signaled that it believed the asserted patents were invalid or inapplicable, hence the flurry of invalidation trials. Settlements like this don’t necessarily adjudicate who is ‘right’; rather, they can set commercial terms and remove existential risk for the product and its community.
What we don’t know (and why that’s normal)
Both sides say the details are confidential. That likely includes any licensing arrangements, payment schedules, or engineering adjustments – if any were required. Confidential settlements are common in IP disputes: they prevent disclosure of proprietary know-how and allow the companies to move forward without relitigating the same talking points in public. For observers, the lack of specifics can be frustrating, but for developers and producers, it’s often the cleanest way to stabilize a live game.
Impact on development and content cadence
Assuming the settlement includes guardrails, Cygames can continue shipping features within those boundaries. If certain training or scheduling systems were implicated, engineers may have documented alternatives during the dispute, ensuring the team could pivot without derailing the roadmap. From the player’s perspective, that means regular events should continue, and any behind-the-scenes tweaks should be invisible – or at least feel like routine balance work.
A franchise that blends anime fandom with real racing lore
Part of Umamusume’s magnetism is its premise: legendary racehorses reimagined as bright, ambitious anime girls – ears, tails, and all – whose stories echo the ups and downs of the track. What began as an anime in 2018 blossomed into a Japan-only mobile release in 2021, and then into a phenomenon with a cult following. Players not only strategize training menus and race placements; many become curious about the real horses and the history behind each character’s nameplate. That emotional connection – between simulation, storytelling, and sports heritage – is the franchise’s secret sauce.
Where Konami fits into the picture
Konami’s history with sports management simulations and its emphasis on polished systems made the company particularly sensitive to perceived overlap. Its public statement, like Cygames’, leaned into mutual respect and customer satisfaction. That tone matters: it signals an intent to compete on creative quality, not just courtroom leverage, and it reduces the likelihood of whiplash for the player base.
Bottom line
The lawsuit is closed; the game plays on. If there are any licensing or design obligations tucked into the settlement, they are unlikely to change the day-to-day experience for most players. In a market where live games can disappear overnight, a negotiated peace is a victory for stability. Train your team, chase PR times, and enjoy the character arcs – because for now, the finish line is still far ahead, and the track remains open.
3 comments
If they tweak systems pls don’t nuke my Mejiro McQueen build 🙏
Honestly just glad the horse-girls aren’t getting benched. Was worried they’d pull the plug mid-event lol
Feels like a W for players. Let lawyers fight, let Special Week run 🐎