Nintendo Faces Modest $30,000 Potential Award in Japanese Patent Dispute Over Palworld

Nintendo and The Pokémon Company are engaged in a patent infringement lawsuit against Pocketpair, the developer behind the game Palworld, in Japan. The dispute focuses on patents related to game mechanics used in Pokémon titles, specifically those involving the capture of creatures in a virtual field.

Palworld, released on Steam for $30 and launched on Xbox and PC Game Pass in early 2024, quickly broke sales and concurrent player records. Pocketpair’s CEO, Takuro Mizobe, acknowledged the overwhelming success and subsequent profits. Capitalizing on this momentum, Pocketpair partnered with Sony to establish Palworld Entertainment, aiming to expand the intellectual property, and later released Palworld on PS5.

Following Palworld’s launch, observers noted similarities between Palworld’s creatures, known as Pals, and Pokémon, leading to accusations of design imitation. However, Nintendo and The Pokémon Company opted to pursue patent infringement claims rather than copyright litigation. Their initial lawsuit sought 5 million yen (approximately $30,000) each in damages plus late payment fees, alongside an injunction to halt Palworld’s release.

In November 2024, Pocketpair confirmed that three Japan-based patents—centered on the mechanic of catching creatures by throwing a ball-like device—were the basis of the lawsuit. Palworld’s mechanic involved using a "Pal Sphere" to capture monsters in the field, akin to the mechanic in the 2022 Nintendo Switch title Pokémon Legends: Arceus.

In response to the legal threat, Pocketpair implemented changes in Palworld’s gameplay. Patch v0.3.11, released in November 2024, removed the ability to summon Pals by throwing Pal Spheres, replacing it with a static summon near the player. Additional mechanics were also altered. Pocketpair stated these changes were necessary to avoid a greater deterioration of the gameplay experience.

Further modifications occurred in May 2025, when Pocketpair replaced gliding with Pals by introducing a glider item. The developer described these adjustments as "compromises" made under the pressure of potential injunctions that could block Palworld’s development and sales.

IP expert Florian Mueller, writing on Games Fray, noted that Nintendo and The Pokémon Company narrowed their claims late last year to cover only older versions of Palworld, excluding recent updates and the upcoming Palworld 1.0 release. This adjustment likely reflects the impact of Pocketpair’s gameplay changes.

Mueller concluded that Nintendo has no viable path to victory against current or recent versions of Palworld and that no injunction with practical effect is expected. Even if Nintendo prevails on older versions, the maximum damages would be limited to 5 million yen (about $30,000), which is negligible compared to Nintendo’s litigation costs.

The limited damages stem from a brief infringement window with restricted sales confined to Japan. Nintendo filed divisional patent applications only after Palworld’s January 2024 launch, and Pocketpair’s November 2024 changes further curtailed potential infringement.

Mueller emphasized that Japanese patents apply solely within Japan, preventing Nintendo from seeking damages on worldwide sales. Consequently, the litigation’s commercial stakes are minimal, focusing instead on a hypothetical injunction and a small damages award for a short period of limited sales.

While Nintendo could consider pursuing litigation in other jurisdictions, Mueller noted the difficulty of securing game-rule patents internationally. For instance, the U.S. Patent and Trademark Office rejected Nintendo’s controversial patent related to summoning characters to fight, following criticism from IP lawyers.

The Japanese court has scheduled a presentation of evidence for October 1, 2026, with an opinion expected by November 9, 2026. Meanwhile, Palworld 1.0 is slated for release on July 10, 2026.

This case highlights the challenges of enforcing game mechanic patents and the limited commercial remedies available when defendants adapt their products in response to legal threats.