To add a new category to a page you can click the Category button at the bottom of the page and type in the name you'd like your category to be called.
A full list of existing categories can be found at Special:Categories.
Pages in category "Browse"
“ The list of entries that are published, submitted or distributed by the series' author but with...
“ Pages of this category have references of two or more articles, which are not to be confused around.
“ All events belong to this category are used for activities and schedules in timelines of every...
“ Pages in this category are the best sets in this wiki with their brancehs and without offerings.
“ This category contains playalbe game modes in every installment of Space Monsters universe.