34497a3fe0ef52949a1ba8e99894ed69 This article belongs to the Classic Continuity
The images on this article are non-canon, being obtained from video games

Kylmyys is an ice-cold world and a home planet of the Necrofriggians and Psycholeopterrans.



Kylmyys in Project Exonaut

Due to a cataclysmic event that occurred eons ago, Kylmyys is covered entirely by glacial ice and snow, trapped in an everlasting winter.[merchandise 1]


Because of the planet's oppressively cold temperature, no corporeal creature could survive in this unbearable frozen climate. However, the Necrofriggians managed to evolve over the millennia into intangible ghost-like forms, having no solid material to freeze. In a wistful way, for even though the incorporeal Necrofriggian may be able to exist on their home planet, they can never truly be a part of it, nor any concrete world.[merchandise 1]


Known Inhabitants


Kylmyys is Finnish for "cold".

Video Games

Galactic Racing

Various tracks located on Kylmyys exist in the game.




  1. 1.0 1.1 1.2 Ben 10: Alien Force (Video Game) Nintendo DS Plumber Database; file1, file2, file3
Celestial Bodies
Seen Planets
AldabraAnodyneAnur TransylAranhaschimmiaAugstakaCoda CodaEarthEncephalonus IVGalvan PrimeIncursean HomeworldKhorosLepidopterraMykdl'dyPantophagePeptos XIPeptos XIIPerplexahedronPetropiaPisccissPlutoPrimusRevonnahT-KTerminus IIITerraexcavaTurrawusteVilgaxiaXenon
Unseen Planets
AeropelaAndesiteAnur G'rrnayAnur KhufosAnur MillganAnur OrmerowAnur PhaetosAnur VladiasAppoplexiaArburiaAul-TurrhenChalybeasColeop TerraFlors VerdanceGilli-Perambulous PromenadeHathorKeplorrKinetKiusanaKylmyysLewodaMethanosMolluskusNemunimos IVPattersoneaPolyominusPrypiatosRinga MorrSangerosiaScalpascSightraTechadonTerradinoTesslosThalassiaViscosiaVulcanVulpinX'Nelli
Sapient Planets Satellites Locations in Space
Galilean (Gravattack, Orbit Man)Evolved Galilean (Ultimate Gravattack) Galvan BLuna LoboMoonMyceto Great Vault of SulkisEdge of the Galaxy IncarceconNull Void IncarceconSpace Cafe
Stars Star Systems Galaxies
Pyros Anur SystemGalvan Star System Andromeda GalaxyMilky Way Galaxy
Other Celestial Bodies
Cosmic StormsForge of CreationNosedeen QuasarTeslavorr
Retconned Non-canon
ChroniaOsmosOsmos V CorundorIgnisLignumMor' OtesiPoiana LüncasZvezda

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