Kardashev Scale Wiki

A Type II or K2 civilization has control over their solar system, and may be able to harness the power equivalent of a single star. It extracts fusion energy, information, and raw-materials from multiple solar systems; it is capable of evolutionary intervention, interstellar travel, interstellar communication, stellar engineering, terraforming, and star cluster-scale influence; the resulting proliferation and diversification may negate the probability of extinction. Complete control of the fate of its home planet where threats like ice ages and global warming can be avoided.

A possible utopian outcome on the low to mid end of the K-scale is the Dyson Sphere, a hollow gigantic shell with a surface area equivalent to millions of Earths that can fully enclose the Sun and capture all of its solar energy output. Under the direction of a Godlike superintelligence, huge numbers of automated, self-replicating ships can build it using material from the asteroid belt, the Kuiper Belt, and the Oort Cloud. The interior walls will have a gravitational field similar to Earth's and will use magmatter to withstand the immense tensile forces required to maintain structural integrity. Portions of this sphere have stable atmospheres, oceans, and landmasses, and are a habitat for many sapient lifeforms, including biological humans, transhumans, aliens, and androids.

With digital immortality, many humans live in massive, hyper-realistic simulations. Others are using synthetic and biological bodies created for them in the physical world using advanced versions of nanotechnology and programmable matter.

Mars has been terraformed into a planet that's able to support a wide variety of animal and plant life. Biological humans walk on the surface of Mars without spacesuits. Mars is now another home, effectively becoming a backup for mankind.

After Mars, Venus is terraformed. Venus is now a habitable, Earth-like planet. Its entire orbit was shifted further away from the Sun to bring it closer to the Goldilocks Zone where biological life is able to exist at stable temperatures. Comets made of ice were redirected from the Oort Cloud and the Kuiper Belt into the upper atmosphere of Venus, releasing vast quantities of water. Carbon dioxide was captured and removed in Venus's atmosphere by dispersing nanobots to absorb carbon dioxide and other toxic gases and replace them with breathable air.

The high end of the K-scale would be a hybrid galactic culture, with millions of cooperating worlds in a galactic community. Poetically, this would be a mammoth archipelago of solar system societies, a multitude of civilized islands separated by the vastness of the oceans of space.

A dystopian path is also possible. Aggressive and ruthless expansion could lead to an uncontrolled sprawl far beyond any form of functional government, regressing into societal collapse and eventually a form of interstellar barbarism with little regard for life.


Energy usage 1026 W to 1036 W. Total usage is the same as Type I multiplied across star systems. The power output of the Sun is 3.8 x 1026 W, so the total energy usage will vary depending on the star system.
Population 100 Quadrillion (1017) people
Existence 4d (awareness of 5d) and 1r (reality)
Quality of life (government)
  • Adhocracy: flexible, adaptable, multidisciplinary government ideally suited to interstellar sprawl; opposite to bureaucracy
  • Hegemony: interstellar sprawl or alien influence leads to sector dominance
  • Military: protection against alien invasion or uncontrolled dissent might lead to a dystopian society ruled by an iron fist
  • Post-scarcity utopia: achieved once the species is beyond interstellar barbarism and has settled into sophonce, or the best path for progress.
  • Superstition and inequality is in the past (the determinants of war). Rational thought and empiricism leads to a sustainable society and green environment.
State of forms Hive minds (surrogacy or avatar)
WMD scale Trans-dimensional; monopole enhanced nuclear weapons; Q-ball world destroyers
Longevity 350 – 500+
Industrial revolutions
Social issues
  • Synthetic life
  • Spacer psionics
Dominant proliferation
  • Dimensional miscegenation cults
  • Unified transhuman society
Social weakening Dimensional fallout or hyper radiation where dimensionally alternate 2d has disastrous effects on health (solution – Avatar allowing re-hosting of the contaminated)
Social dream Eden or religiously motivated megastructure projects
Class system Ideology meaning the general availability of superiority makes your motivations and commitments a value set



Interstellar age





  • Power consumption: 1028 W to 1029 W
  • 100 star systems colonized.
  • Meeting with alien species, and either trading or warring with them (assuming similar levels of advancement).
  • Interstellar communication systems are being developed.
  • Weapons become used only against alien threats. Interstellar tracking systems are developed around the Dyson sphere which could be transitioning from a swarm to a secure solid sphere as more solar masses are gathered.

Transhuman age

  • Power consumption: 1029 W to 1030 W
  • 1,000 star systems colonized.
  • Natural wormholes are explored.
  • First object sent to intergalactic space.
  • As the transhuman era emerges, humanoid settlers begin to become independent in their own colonies.

Posthuman age

  • Power consumption: 1030 W to 1031 W
  • 10,000 star systems colonized.
  • Ability to use wormholes and devices like stargates, as some faster-than-light technology is too slow for vast interstellar distances.
  • Beginning of the posthuman era; the species of the planets colonized in the past by humans become a separate people with their own culture.

Age of essence

  • Power consumption: 1031 W to 1032 W
  • 100,000 star systems colonized.
  • First time travel using relativistic time dilation.
  • Huge Matrioshka brains are created, capable of making a civilization and its data become at one with itself. Dyson spheres are now solid.

Dark Matter Age

  • Power consumption: 1032 W to 1033 W
  • 1,000,000 star systems colonized.
  • Species now may move towards sophonce and be one of the leading civilizations in a bustling galaxy of cooperation and trade, and respond to common threats.
  • Dark Energy reactors are built and there are multiple catastrophic core failures.

Second Magnetic Age


Black Hole Age


Galactic Age

  • Power consumption: 1035 W to 1036 W
  • Galaxy Colonized.
  • Remote contact with aliens from another galaxy. A higher type civilization could support the pre-K3 civilization with intergalactic technology, or late K2 could invent it themselves. Travel is now possible to another galaxy, but do not have the means to colonize yet.

Additional Technology and Sociology

Megastructure construction
Molecular manipulation weapons & fuel, missile, armour
Moleculartronics holodeck, holosuite
Artificial life weapons & medicine, gene-jacking, psionic wave, empathy
Multidimensional physics weapons & gate tech, cannon, transdimensional portal, WMD
Hyperdimensional fission weapons & travel, torpedo, drive, capacitors
Hyperdimensional physics weapons & communication
Distortion fields in shields science cloaking, shields, weaponized fields
Military quantum fields shields, planetary fields, ECM
Xeno culturalism capitalism, propaganda, cultural focus
Planetary environmental conservation
Monopole and Q-ball detection
Mind intranet or Hive mind dreams, thought control
Autonomous VI mining, espionage satellite, colony builders, extranet hack
Murgatroyd Hypothesis
EM field coupling
Exotic matter replicants
Strong force weakening
Bioadaptive storage
After death realm awareness
Toposophic scale
Inorganic evolution

Civilizations that are considered Type II

2.1 Federation and other races of Star Trek
2.2 UNSC from Halo
2.2 Races from Wing Commander
2.2 Races in Mass Effect
2.3 Borg of Star Trek (thousands of species assimilated)
2.3 Races in Homeworld
2.3 Fallen Empire from Stellaris
2.4 Covenant from Halo
2.4~2.8 Races and Humans from Warhammer 40K
2.5~2.9 Galactic Empire of Star Wars (capable of intergalactic travel)
2.5 Protoss from StarCraft
2.6 First Ones from Babylon 5
2.6 Races and Humans from Andromeda
2.7 Forerunners from Halo
2.7 Ring Builders from The Expanse
2.9 Purrgil of Star Wars (not sapient but capable of intergalactic travel)

Navigation to Kardashev Type

 Omniverse: Type 0 - Type I - Type II - Type III - Type IV - Type V - Type VI - Type VII
Hyperverse: Type VIII - Type IX
Outerverse: Type X - Type XI - Type XII - Type XIII
   Adverse: Type XIV - Type XV - Type XVI - Type XVII - Type XVIII - Type XIX
    Beyond: Type XX. This is the final official type.