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A community datamine report published October 31, 2024, alleged that files from the Monster Hunter Wilds open beta contained IDs for Gravios, Gypceros, Nerscylla, and Gore Magala. Capcom later confirmed Gypceros, Nerscylla, and Gore Magala as returning monsters. The sources available here do not establish whether Gravios ultimately appeared in the game.
Which monsters did the beta datamine name?
Twisted Voxel’s Muhammad Ali Bari reported that a community datamine of the open-beta files had identified four monster IDs:
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- Gravios — ID 0005
- Gypceros — ID 0009
- Nerscylla — ID 0070
- Gore Magala — ID 0071
The October 31, 2024 article, “Monster Hunter Wilds Open Beta Datamine Allegedly Reveals Unannounced Returning Monsters”, described the files as evidence of possible returns. It was a secondary report about community-sourced material, not a Capcom roster announcement.
What was confirmed after the leak?
Capcom-authored coverage subsequently confirmed three of the four names. The PlayStation Blog’s second open beta post discussed Nerscylla’s comeback and Gore Magala, and said players could fight Gypceros in the beta. Capcom USA community manager Joseph Bustos called Gypceros “this returning monster” in the post.
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- Wild New Adventure – Monster Hunter Wilds follows the story of a special Research Commission investigating the Forbidden Lands. Fully voiced for the first time in the series, the hunter is joined in their journey by a colorful cast of characters, including a Palico partner, Guild-appointed Handler Alma, trusty smithy Gemma, and the mysterious child Nata. Together, the team ventures into an unexplored new frontier where surprises await around every corner.
- A Living World – The Forbidden Lands spans multiple biomes with dynamic identities, such as the Windward Plains and Scarlet Forest, where the ecosystems shift between vibrant seasons brimming with life, and unforgiving climates where monsters fight over limited resources. Changes in the landscape will impact the creatures that live there and push hunters to adapt as well.
- New Monsters and Wildlife – Monster Hunter Wilds features a variety of new creatures, ranging from herds of small species to large monsters – some of which roam the Forbidden Lands in packs. Every creature hunters encounter in the wild has carved out a special place in its habitat and possesses unique attacks and behaviors.
- Players can also now ride atop the Seikret, an agile new mount enabling hunters to traverse difficult terrain, perform actions like sharpening weapons on the move, and switch between two weapons while out on hunts!
- Evolved Hunting Action – The series’ acclaimed action-packed gameplay is back and more exciting than ever! Hunters can look forward to tracking down monsters with an array of new moves, special abilities, equipment, and more. The action also now flows seamlessly from cutscenes to gameplay, resulting in a new level of immersion.
Capcom France’s February 5, 2025 recap also described Nerscylla and Gore Magala as returning monsters and said Gypceros would be introduced in the second beta. The PlayStation Blog listed the beta sessions as February 6–9 and February 13–16, 2025, Pacific Time. Its content included the prior test content, Gypceros, an advanced Arkveld quest, and a training area. The post cautioned that the beta did not reflect all weapon-action and balance adjustments planned for the full release.
| Monster | What the October 2024 report alleged | What later official coverage established |
|---|---|---|
| Gravios | Beta-file ID 0005, according to Twisted Voxel. | Not resolved by the sources cited here. |
| Gypceros | Beta-file ID 0009, according to Twisted Voxel. | Capcom described it as a returning monster and made it available to fight in the second open beta. |
| Nerscylla | Beta-file ID 0070, according to Twisted Voxel. | Capcom described it as making a comeback to the series. |
| Gore Magala | Beta-file ID 0071, according to Twisted Voxel. | Capcom-authored coverage introduced it as a returning monster. |
Sources: Twisted Voxel, PlayStation.Blog, and Capcom France.
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- Hunt giant nature-infused bests – Survive their attacks, learn from their behaviors, and use your Karakuri and your weapons in combination to cut these creatures down to size.
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What the datamine did—and did not—prove
A monster ID in beta files is not, on its own, proof that the monster was fully implemented, playable, or guaranteed to remain in the final game. Twisted Voxel’s interpretation relied in part on its observation that monster IDs had historically been consistent across entries; that was the report’s rationale, not a Capcom guarantee.
For Gypceros, Nerscylla, and Gore Magala, later official coverage supplied confirmation beyond the alleged file IDs. For Gravios, the sources cited here do not answer whether the ID represented a final, playable appearance. That uncertainty should not be turned into a claim that Gravios was cut or never appeared.
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Why “unannounced” needs a date
“Unannounced” accurately describes the four names as presented in the original October 2024 leak report. It does not describe their status indefinitely: Capcom later confirmed three. A June 8, 2026 Capcom announcement said the paid expansion Monster Hunter Wilds: Ascendance was in development for release in 2027, with new quest ranks, locales, monsters, and expanded weapon actions planned; it also said the game was being developed for Nintendo Switch 2 alongside existing platforms. That later expansion announcement does not establish anything about the earlier beta-file claim. Capcom’s announcement.
Quick Recap
Rank #4
- Wild New Adventure – Monster Hunter Wilds follows the story of a special Research Commission investigating the Forbidden Lands. Fully voiced for the first time in the series, the hunter is joined in their journey by a colorful cast of characters, including a Palico partner, Guild-appointed Handler Alma, trusty smithy Gemma, and the mysterious child Nata. Together, the team ventures into an unexplored new frontier where surprises await around every corner.
- A Living World – The Forbidden Lands spans multiple biomes with dynamic identities, such as the Windward Plains and Scarlet Forest, where the ecosystems shift between vibrant seasons brimming with life, and unforgiving climates where monsters fight over limited resources. Changes in the landscape will impact the creatures that live there and push hunters to adapt as well.
- New Monsters and Wildlife – Monster Hunter Wilds features a variety of new creatures, ranging from herds of small species to large monsters – some of which roam the Forbidden Lands in packs. Every creature hunters encounter in the wild has carved out a special place in its habitat and possesses unique attacks and behaviors.
- Evolved Hunting Action – The series’ acclaimed action-packed gameplay is back and more exciting than ever! Hunters can look forward to tracking down monsters with an array of new moves, special abilities, equipment, and more. The action also now flows seamlessly from cutscenes to gameplay, resulting in a new level of immersion.
- Crossplay Multiplayer – Alongside the option to enjoy the story of Monster Hunter Wilds solo, hunters can join up to three other players across any platform to explore the world together and take on the game’s challenges as a hunting party or receive aid from notable story characters as Support Hunter NPCs.
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