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“You saved the entire industry”: The 13-year-old video of a Pokemon fan game now cited in the rejection of a Nintendo patent is being celebrated by fans happy to see creative freedom win
A fan-made game prototype from 2013 has unexpectedly become significant in an intellectual property dispute between Nintendo and Palworld developer Pocketpair. The Japanese Patent Office recently rejected a Nintendo patent application covering in-game monster-capturing systems, with evidence from the old fan game helping to invalidate the patent claim.
The patent rejection emerged as part of Nintendo's broader legal conflict with Pocketpair over design similarities. Whilst the dismissal of this single patent does not resolve the overall lawsuit, it constrains Nintendo's ability to pursue certain infringement arguments. The outcome has resonated with gaming communities who view it as affirming independent developers' ability to explore similar game concepts.
In short
- Japanese Patent Office rejected a Nintendo patent for monster-catching systems using a 13-year-old fan game video as evidence
- The rejection weakens Nintendo's position in its lawsuit against Palworld developer Pocketpair, though does not end the case
Steelman: both sides, in good faith
The strongest fair case each way — we don't pick a winner.
The case for
The patent rejection affirms that fundamental game mechanics should not be monopolised by corporations, allowing independent developers to innovate within the same design space. When a prototype existed in fan creations years before the patent application, the patent office correctly identified that the claimed invention lacked genuine novelty, and this precedent protects smaller studios from the chilling effect of overly expansive corporate intellectual property claims that could otherwise prevent any similar creature-catching game.
The case against
Nintendo invested substantially in developing, refining, and popularising the creature-catching game format, and intellectual property protections exist to reward such innovation and incentivise future investment in gaming. A single fan prototype should not invalidate a company's legitimate patent on sophisticated commercial implementation, especially when the vast difference in polish and success between fan work and Nintendo's products demonstrates genuine creative achievement; broader patent protection maintains proper incentives for companies to invest in innovation rather than see their work freely copied.
Explained simply
Nintendo and Pocketpair, developer of the game Palworld, are in a legal dispute over alleged design similarities. The Japanese Patent Office has recently rejected a Nintendo patent application concerning creature-catching systems in video games, with evidence from a 13-year-old fan-created Pokémon game helping to invalidate Nintendo's intellectual property claim.
Nintendo is one of the world's largest video game companies and created Pokémon, the creature-catching franchise that became a global phenomenon in the 1990s. Pocketpair is a much smaller independent developer; their recent game Palworld gained popularity using a similar creature-catching gameplay style, leading Nintendo to claim it infringed their intellectual property rights.
The patent rejection weakens Nintendo's legal arguments in their broader case against Pocketpair. It indicates that Nintendo cannot fully control the creature-catching game concept, potentially giving independent developers more freedom to create similar titles.