Cyberse (サイバース Saibāsu) is a Type of monster. This Type is used by Yusaku Fujiki, Varis, Bohman, BitBoot, Takeru Homura, Earth, Windy, Lightning, Haru, Skye Zaizen, Ai, and Pandorin Yu-Gi-Oh! VRAINS. Appearance-wise, they resemble creatures and humanoids strongly connected to elements of digital technology and cyberspace. At times though, they tend to resemble either Insect, Machineor Psychic monsters (the humanoids bearing design elements from the TRONfranchise). The name is a portmanteau of "Cyber" (サイバー Saibā) and "Universe" (ユニバース Yunibāsu).
Their general theme revolves around swarming the field with weak monsters to easily Link Summon powerful Link Monsters, and they also have lots of monsters that gain effects when banished in a similar vein to Psychic monsters.