Thread:Withersoul 235/@comment-30300307-20170727115013/@comment-30300307-20170727152528

You can also upgrade Solaris, Illumina, etc ONLY by adding the Archie Key as well.

https://en.wikipedia.org/wiki/Dimension#Additional_dimensions this link should answer your questions. Extradimensional is at least 5D though I'm sure it's likely higher.