Villains that come from the XNDUIW community, which is based off the MMO game known as Roblox.

NOTE: The XNDUIW storyline is extremely complicated as a Roblox storyline, considering that it may involve several hundred characters, who are ethnically diverse. It is the most complex Roblox storyline that is included in this wiki in general, as it involves a lot of characters and OC's simultaneously.

The heroes counterpart is XNDUIW Heroes