Planeptune is the land protected by the CPUs Iris Heart and Yellow Heart in the Ultra Dimension.
Geography
The geography in the Ultra Dimension Planeptune is similar to that of the Hyper Dimension Planeptune in Hyperdimension Neptunia mk2. It's still situated in the western region of Gamindustri's mainland and is filled with green grass, a few lakes, some forested areas, and even a resort near the ocean. It still upholds the futuristic and advanced appearance like its Hyper Dimension counterpart and also has a few towns situated in its vicinity.
Dungeons
Victory
Re;Birth3
Lost Places
| Lost Place | Name | Lost Place | Name |
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Old Locomotive | 
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Kinda Decaying Building |
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A Winged Capsule? | 
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Some Sorta Foundation? |
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The Golden Axe | 
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A Huge Ring |
Denizens
 | This list is incomplete. You can help by adding missing items. (September 2022) |
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Beep -
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Manual -
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Necky -
Shiro Pluto
Story
Hyperdimension Neptunia Victory
 | This section is empty. You can help by adding information to it. (May 2025) |
Hyperdimension Neptunia Re;Birth3
Planeptune's role in Hyperdimension Neptunia Re;Birth3 is the same as in Hyperdimension Neptunia Victory.
Musical Themes
Audio samples do not work on iPad or any medium that does not support the .ogg audio format.
| Name | Game | Description | Audio |
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| "Planeptune's Theme ver. V" | Hyperdimension Neptunia Victory Hyperdimension Neptunia Re;Birth3: V Generation |
Planeptune's theme from Hyperdimension Neptunia Victory. |
Gallery
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Planeptune's Park -
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