Other minor worlds or difficult to define as such

In theory, there are many Worlds/Universes, as well as alternative realities for each of them.

• Action World
• Brick World
  • Megablock city
• Dark / Horror / Twisted / Evil World
• Digital World
• Future World
• Mythological World
• Prehistoric World
• Space World
  • Future City
  • Meggagrid
  • Transformtron
• The Nexus
• Western World

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