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Skaia is a body in the center of the Incipisphere, surrounding the Battlefield inside, whose protection it is also charged with; the name Skaia is sometimes used to refer to both of these bodies as a unit.


Skaia is a portmanteau of sky+gaia, reflecting its nature as both a sky and a planet, Gaia being an Ancient Greek name for the Earth personified. This could also allude to Gaia and her mythological husband Uranus, personification of the sky, whose union produced the first generation of Ancient Greek gods the Titans. Among the Titans was Cronus, a god of time who overthrew his parents.

A Skaian gate or gates are also mentioned in Homer's Iliad, possibly inspiring Skaia's relationship with The Seven Gates.


Skaia has a blue surface scattered with white cloud cover. It serves a similar role to a star in the center of a star system, though thanks to its appearance it can also be seen as a sort of spherical sky to all the planets in the Incipisphere. Andrew Hussie describes it as a big ball of pure sky [...] You look UP at it, from a place like Prospit.[1]

Legend holds that Skaia exists as a dormant crucible of unlimited creative potentialHS.svg - a well of potential from which every conceivable possibility arisesHS.svg, which gives Skaia a sort of knowledge or intelligence of his own; seemingly shared across all instances of Skaia across all sessions, with Skaia only ever being referred to in the singular. Skaia uses its preemptive all-knowingHS.svg and comprehensive "knowledge" of its own fateHS.svg to make plansHS.svg for the sessions in which it is involved; as a force of creation, these plans tend to oppose those of the HorrorterrorsHS.svg, though the two parties may sometimes strike a deal with each otherHS.svg.

Skaia's knowledge can be shared with onlookers through images projected on oracle cloudsHS.svg, especially during an eclipse in which Prospit's moon passes through Skaia's surface and is cast in a variety of CLOUD MIRAGESHS.svg. Dersites like Jack Noir refer to Prospitians pejoratively as Skaia-bathingHS.svg, and some are incapable of viewing Skaia's knowledge at allHS.svg, which Hussie suggests is a deliberate choice by Skaia to [deny] the right to have any visions of the future to its enemies.[2]

Defense portals[]

Though Skaia is said to have influence on the rest of the incipisphereHS.svg, down to the amount of prototyping towers that appear on Prospit and Derse, it is a very passive entityHS.svg that only "knows" and "sees," but it never quite "acts."; its ability to physically affect the temporal world is limited entirely to its ability to create defense portals, redirecting the Veil's meteoric Reckoning from the Battlefield to its only other optionHS.svg, the planet of the session's origin.

With the temporal energy provided by the scratch, Skaia is able to change the destination times of some of its defense portals, creating an offshoot, post-scratch timeline by sending certain "important meteorsHS.svg", such as those carrying the young heroes from the ectobiology lab, to different years. As the vast majority of the destructive onslaughtHS.svg of meteors never showed up in Earth's post-scratch timeline, it is unclear if the majority of them were also moved to different times in Earth's history, or if Skaia also somehow has the ability to stop some meteors from reaching Earth at all.

The trolls' victory lilypad.

Skaia 12a.png

Gestating the new universe[]

After the defeat of the Black King on the Battlefield, grist rigsHS.svg are placed on each of the players' planets and pump hoards of gristHS.svg toward Skaia, preparing for the Genesis Frog tadpole to be launched upward from the Forge. Once the Genesis Frog has grown to full size inside, Skaia takes on a more watery appearance so as to nurture the frog inside, with giant lily pads floating on its surface (though similar lily pads are also present during the fight with the KingHS.svg). After all this, a dark grey lilypad-shaped platform appears in Skaia orbit, from which the victorious heroes access the door to the new universe inside their frog.


Skaia after Jack Noir's attack on Bilious Slick.

A2 session[]

After Jack Noir's attack on the trolls' session, Skaia remained intact, though its surface was muddied with the remains of the slaughtered Bilious Slick.

B1 session[]

Even before any of the Homestuck Kids play Sburb, Jade Harley is able to visit Prospit during her dreams and gain an understanding of future events (much to the confusion of her friends) using the Skaian clouds.

B2 session[]

When the kids orchestrated the scratch, past Skaia manipulated the defense gates so that the meteors bearing the kids and their guardians would land in different places and time periods, so that each kid-guardian pair would be switched (John/Nanna, Rose/Mom, Dave/Bro, Jade/Grandpa). Rose states that Roxy and Dirk living in "the future" instead of the time period Rose and Dave lived in was one of Skaia's "peculiar whims".

Cherub sessions[]

Skaia in darkness.

In Calliope's and Caliborn's session Skaia has started to fill up with dark grey storm clouds, and is completely filled with them by the time Jack kills Calliope's dream self. This may be related to their game being a dead session, but it remains unaddressed. Curiously, in this session Prospitans wear black clothes, and Dersites wear white, an inversion of the sessions observed so far. This could tie in to Calliope and Caliborn's Yin-Yang theme.

When Caliborn makes The Choice to take the path of the conqueror, Skaia becomes darker and heavier, turning into a solid sphere before exploding in an event known as the First Break. Fifteen new planets emerge from the blast and scatter around the Medium while the remaining Skaian matter collapses into a black hole at the center of the incipisphere. Three of the planets are swallowed by the black hole, leaving only twelve. As part of his quest, Caliborn uses powerful bombs to push each planet into the black hole, "sinking" them.



  1. Andrew Hussie. "Also, it's kind of interesting how if you view Skaia as if it were a planet, and you were hovering over its surface looking at the horizon like this, all its clouds are upside down. That's because Skaia is a big ball of pure sky, and the sky is up. You aren't supposed to STAND on it, like some kind of FOOL. You look UP at it, from a place like Prospit." Homestuck: Book 3: Act 4, p.450.
  2. Andrew Hussie. "It's an interesting fact that he never gets to see anything in the Skaian clouds. I think this somewhat speaks to the creepy, passive form of intelligence Skaia sometimes exhibits. It shows certain people what they need to see, according to its own mysterious logic. And for some, it apparently denies the right to have any visions of the future at all. As if some greater purpose is being served by keeping certain individuals in the dark. Then again, it could also be that Skaia understands these high ranking Dersites are its natural enemy, whose only goal is to prevent Skaia's ultimate purpose from being fulfilled. Why give your enemy any information at all? Perhaps we should even be commending Skaia for its restraint in not showing Jack a vision of someone flipping him off." Homestuck: Book 6: Act 5 Act 2 Part 2, p.353.
Homestuck locations
John's house
John's bedroom
Rose's house
Rose's bedroom
Dave's house
Dave's bedroom
Jade's house
Jade's bedroom
Jane's house
Jane's bedroom
Roxy's house
Roxy's bedroom
Dirk's house
Dirk's bedroom
Jake's house
Jake's bedroom
Aradia's hive Tavros's hive Sollux's hive Karkat's hive
Nepeta's hive Kanaya's hive Terezi's hive Vriska's hive
Equius's hive Gamzee's hive Eridan's hive Feferi's hive
Trolls' meteor
Calliope and Caliborn's room
Land of Wind
and Shade
Land of Light
and Rain
Land of Heat
and Clockwork
Land of Frost
and Frogs
Land of Crypts
and Helium
Land of Pyramids
and Neon
Land of Tombs
and Krypton
Land of Mounds
and Xenon
Land of Quartz
and Melody
Land of Sand
and Zephyr
Land of Brains
and Fire
Land of Pulse
and Haze
Land of Little
Cubes and Tea
Land of Rays
and Frogs
Land of Thought
and Flow
Land of Maps
and Treasure
Land of Caves
and Silence
Land of Tents
and Mirth
Land of Wrath
and Angels
Land of Dew
and Glass
Leprechauns' Planets
Land of Colours and Mayhem
SkaiaProspitThe MediumThe VeilEctobiology labDerseFurthest RingDream bubbles
Future, pre-scratch Earth
Skyship BaseHelipod BaseEggy-Looking BaseBec Head BaseCan Town
Other locations
Beforus / Alternia (post-Reckoning)
Earth (Pre-scratch future, post-scratch future, Earth C)
Frog TemplePacific IslandSkaianet Laboratory
NPCs SpritesUnderlingsDenizensConsortsFirst guardiansCarapacians/ExilesLeprechauns
Locations (starting planet) Command stationsForgeFrog Temple
Locations (Incipisphere) The MediumThe Veil/Ectobiology labsSkaiaProspit/DersePlanetsThe Seven Gates
Concepts PrototypingEctobiologyGod tiering (Mythological roles) • Grist/Ultimate AlchemyBoondollarsFraymotifsDream selvesPhernaliaThe ScratchNull sessionsInternet
Related concepts SylladexSkaianetCrockercorp