|Titles||The Green; the Green Star; the Green Planet|
|Orbit||Half a year|
|Inhabitants||Lashunta, elves, formians|
While Akiton is generally associated with warfare, Castrovel often represents fertility and lust. These generalizations are well-founded, as the planet is almost entirely covered in teeming jungles, endless swamps, and strange clouds of colored gas. The abundance of life across its surface leads to huge trees and enormous creatures, many of them predatory. Its humid atmosphere, while technically biocompatible with Golarion, spawns comparably powerful storms; living moldstorms that ravage its moistest climates consume any organic matter in their wake.
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In scholarly works, Castrovel is sometimes represented by a rune: three circles interlaced in a top left to bottom right diagonal fashion, with the middle circle having a vertical bar within it.
The planet is dominated by a race of psionic matriarchal humanoids called lashunta. The females of the species resemble idealized human women with antennae, while the males are squat and ugly and known for their martial prowess. Riding enormous lizard steeds, the lashunta patrol the edges of their city-states, driving off the dangerous fauna of the foetid jungles.
- centipede ticks
- cerebric fungi
- elves, the second most predominant race after the lashunta
- mountain eels
- sky fishers
Some of the most notable places on Castrovel are listed below:
- The continent of Asana
- The Colonies of the formians
- The many, scattered Lashunta city-states, including
- Qabarat, the Shining Jewel of the Western Sea: the greatest of the lashunta city-states
- Ocean of Mists
- The elven nation of Sovyrian
- Sovyrian's capital city of El
- The Western Sea
- Woven River
- Yaro River
Like most of the planets in the solar system, Castrovel is known to have a number of magical portals linking the Green Planet to its neighbors. The lashunta warrior-scholars learned the workings of these gates long ago, especially the ones that connect Castrovel to Akiton. Because of this, these two planets probably have the closest relationship of any in the solar system. Less common portals also connect Castrovel to Golarion and Triaxus. 
The elves of Castrovel are responsible for a different, more-localized portal called an aiudara, or 'elf gate'. These transport people for thousands of miles, enabling fast, global travel around Castrovel.
Connection to Golarion
Castrovel (along with Akiton and Golarion's eccentric orbit) exhibit a strange influence over the floor of Lake Nirthran in the Darklands realm of Sekamina, causing it to buckle up near the lake's center.
- Erik Mona et al. (2008). Campaign Setting, p. 246. Paizo Publishing, LLC. ISBN 978-1-60125-112-1
- James L. Sutter. (2008). Into the Black. Children of the Void, p. 49. Paizo Publishing, LLC. ISBN 978-1-60125-127-5
- Erik Mona et al. (2008). Campaign Setting, p. 239. Paizo Publishing, LLC. ISBN 978-1-60125-112-1
- James L. Sutter. (2012). Distant Worlds, p. 10–13. Paizo Publishing, LLC. ISBN 978-1-60125-403-0
- Ethan Day-Jones, Jim Groves, Jonathan H. Keith, Andrew Romine, David N. Ross, and James L. Sutter. (2014). People of the Stars, p. 9. Paizo Inc. ISBN 978-1-60125-674-4
- James L. Sutter. (2012). Distant Worlds, p. 10. Paizo Publishing, LLC. ISBN 978-1-60125-403-0
- Adam Daigle, James Jacobs, Jason Nelson, F. Wesley Schneider, & Todd Stewart. (2009). Bestiary. The End of Eternity, p. 79. Paizo Publishing, LLC. ISBN 978-1-60125-173-2
- James L. Sutter. (2012). Distant Worlds, p. 57. Paizo Publishing, LLC. ISBN 978-1-60125-403-0
- James L. Sutter. (2008). Into the Black. Children of the Void, p. 53. Paizo Publishing, LLC. ISBN 978-1-60125-127-5
- James L. Sutter. (2012). Distant Worlds, p. 53. Paizo Publishing, LLC. ISBN 978-1-60125-403-0
- James L. Sutter. (2012). Distant Worlds, p. 11. Paizo Publishing, LLC. ISBN 978-1-60125-403-0
- James Jacobs and Greg A. Vaughan. (2008). Into the Darklands, p. 40. Paizo Publishing, LLC. ISBN 978-1-60125-140-4