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The Incipisphere represented on the control panel of the Skyship Base Appearifier.

The Incipisphere is the dimension that Sburb transports its players to, and also where the main gameplay takes place. Each Incipisphere is a bubble in the Furthest Ring. The name is derived from the word "incipient", meaning beginning or emerging. Each Incipisphere is central to one session, with different sessions having their own Incipisphere. It is structured as follows:

The Medium[]

Eight Planet Session

An image that seemingly hints at a session with eight planetsHS which was shown in Act 3HS.

Main article: The Medium

The Medium is the thick of the Incipisphere between the Furthest Ring and Skaia, or more specifically between Skaia and The Veil, to which a player's house is transported to upon entry. Although utilities (such as electricity and Internet connections) appear to be disconnected, the Medium seems to facilitate a working Internet connection (and a power supply, at least to the players' computers) wherever the player is.

Most Sburb sessions provide planets for their players, one for each player to be transported to upon entry; for example, in the B1 kids' session, there are four planets in their Medium. Each planet is separated from Skaia by seven gates, each of which is found somewhere on its surface. Each planet has its own unique environment and (usually) has some form of civilization (long deceased or otherwise) maintained by different species of consorts.

Upon arrival to the Medium, the kernel of the Kernelsprite divides and the prototyped attributes are sent to the Light and Dark spires upon Prospit and Derse respectively. Derse then sends underlings and monsters (initially imps and ogres) to the player's planet to harass the player. These underlings (and eventually, monsters) initially take on the constituency of the materials and elements that make up the player's respective planets, but also take on the characteristics of the prototyping. For example, John's imps were initially made up of Shale and Tar (among others), due to his planet's oily constituency, and wore clowns' clothing, as per his prototyped Kernelsprite.


The Incipisphere as seen in Homestuck 1st year recap

In the B1 kids' session, a planet's theme includes elements suited to each player's Mythological Role. For example, as the Heir of Breath, John Egbert's planet is the Land of Wind and Shade, while as the Seer of Light Rose Lalonde's planet was the Land of Light and Rain. The troll's session seems to follow the same pattern sometimes with frequent deviance. For instance Eridan Ampora as Prince of Hope, an aspect associated with faith and power, sired the Land of Wrath and Angels while Nepeta Leijon sired the Land of Little Cubes and Tea. It is noted that neither Tea, nor sugar cubes, are shown to be associated with the Heart aspect anywhere else in all of Andrew Hussie's works.

Combined B2 Incipisphere

The B2 Incipisphere with the B1 planets added

The B2 kids' planets seem to follow a different convention, possibly due to the special nature of their session; their planets' traits consist of a place of interment and a noble gas respectively (such as the Land of Tombs and Krypton). The specific significance of the planets' traits to their player is yet to be confirmed.


The trolls' planets and client-server connections.

There are a few quirks to the naming and theme of the planet; for example, as far as we can tell all Space players will have Frogs as their planet's latter trait (Jade's Land of Frost and Frogs and Kanaya's Land of Rays and Frogs). This is linked to the Space player's planet being the one that facilitates frog breeding. Similarly, every Time player's planet features a construct used to facilitate the scratch.

It would seem every planet facilitates a quest for its player, whether or not the player becomes aware of this. John's planet tasked him to free the fireflies trapped by the thick clouds of his planet (put there by his slumbering Denizen) by utilizing his Breath powers, while Dave Strider of the Land of Heat and Clockwork was provided with a stock exchange he could manipulate with his Time powers. It's also implied that Rose's quest (which she deemed irrelevant and didn't bother with) was to find a way to "play the rain" in a way that would somehow bring life to her fishless, barren planet (as riddled by Jaspersprite). It's suggested by Dave that a planet provides the quest and inheritance that omnipotence deems each player needs to grow into their roles.

The Dark and Light Kingdoms[]

Main articles: Prospit and Derse

There are two kingdoms that occupy the Incipisphere whose ongoing war provides the context for the session. Both kingdoms are comprised of a planet with a moon physically connected by a thick chain. The Light Kingdom, called Prospit, orbits near Skaia, with its moon skirting through Skaia as it orbits around Prospit. The Dark Kingdom, called Derse, has its own distant orbit past a Veil of meteors, flirting with the Furthest Ring, a spatially and temporally indeterminate void inhabited by the Horrorterrors that divides each session from each other.

Prospit and Derse each have a number of spires corresponding to the number of players to receive the kernel from the divided kernelsprite upon a player's entry. Each kingdom is a palette swap of the other, with both exhibiting a complex network of Gothic architecture. Similarly, the inhabitants of Prospit bear a white carapace, while the inhabitants of Derse have a black one.

The Veil[]

Main article: The Veil

The Veil is a belt of meteors that separates the Medium from the Furthest Ring, with Derse orbiting just beyond it. It comprises many asteroids, many of which are "seeds" that will eventually be sent to destroy (and 'repopulate') the players' home planet. The Veil is treated as neutral ground for the kingdoms and contains laboratories as well as other facilities designed primarily for building the kingdoms' armies. Up until the end of Act 5, the trolls were hidden from Bec Noir in what was remaining in the Veil after the Reckoning had depleted it of most of its asteroids.


Main article: Skaia

Skaia is a "dormant crucible of unlimited creative potential" that lies beyond the Seven Gates, for which the kingdoms of the Dark and Light Kingdoms fight for control over. Prospit tries to protect it, while Derse seeks to destroy it. Across every session, Derse inevitably wins. At the center of Skaia lies The Battlefield where the physical war takes place, led by the Black and White King. This battlefield mutates with each prototyping, expanding exponentially in complexity each prototype (how this worked in the trolls' 12-times prototyped session is not illustrated).

The Furthest Ring[]

Edge of Incipisphere

How far the Incipisphere extends beyond Derse.

Main article: Furthest Ring

The Furthest Ring is the void that surrounds the furthest edge of the Medium (and presumably, the Incipisphere), beyond the orbit of Derse. It is the home of The Noble Circle of Horrorterrors, who communicate with the Sburb players whose dream selves sleep on Derse's moon. Despite its apparent distance from the edge of the Incipisphere as shown in the diagram to the right, Rose has stated regarding the Furthest Ring that Derse skirts its edge, and during the lunar eclipse, [Derse dreamers] graze it"HS. It is a vast void of indeterminate space and time that separates all the sessions. Not much has been revealed concerning its inhabitants.

Time and space do not operate properly in The Furthest Ring. Travel through The Furthest Ring can lead back and forth in time, and great mastery of time and/or space is needed to traverse it. The light of The Green Sun can be traced back to its origin and used as a one-way path into The Furthest Ring, if followed quickly enough.


  • It seems to be the case, as shown by the Incipisphere in [S] DD: Ascend, that the planets actually don't exist until the players enter.
    • However, the mythology of Jane's planet states that the B2 session planets have been dead for quite some time, and that the consorts waited very long for the players to arrive. This is easily explained by the fact the Medium and everything in it exists on a separate timeline from the players' home Universe. This same fact also explains why even players who have not yet installed Sburb/Sgrub can have dream selves waking on Prospit or Derse long before playing.
    • This may be a reference to how videogames have backstories, when in reality the world of the game doesn't exist until you start playing.
    • Nanna says that the B1 Incipisphere is independent of the Genesis Frog, and also, that its past was paradoxically brought into existence when John put in the game disc, hence why Grandpa knew about it and could travel into it in his pastHS.
  • In the combined B2 Incipisphere, Rose and Roxy are the only dancestors whose planets aren't adjacent to each other.

Homestuck locations
Frog Temple Command stations
Egbert & Crocker home
John's bedroom
Jane's bedroom
Lalonde home
Rose's room
Roxy's room
Skaianet Laboratory
Strider home
Dave's room
Dirk's room
Pacific island
Jade's room
Jake's room
Calliope & Caliborn's room
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
The Battlefield
Prospit The Medium Derse
The Veil
Ectobiology lab
Trolls' meteor
The Furthest Ring
Dream bubbles
Heroes' Lands
Wind and Shade Light and Rain Heat and Clockwork Frost and Frogs
Crypts and Helium Pyramids and Neon Tombs and Krypton Mounds and Xenon
Quartz and Melody Sand and Zephyr Brains and Fire Pulse and Haze
Little Cubes and Tea Rays and Frogs Thought and Flow Maps and Treasure
Caves and Silence Tents and Mirth Wrath and Angels Dew and Glass
Caliborn's planets
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