The subject of this article or section originates from non-canonical sources. To find out about what is considered "canon" see LOTR:Canon.
Goblin Spider-riders were goblin units which rode on medium-sized spiders. In The Lord of the Rings: The Battle for Middle-earth II, these units can aid Mordor or Isengard in destroying the enemy base during Skirmish. The goblins have thin heads and muscular bodies, and are armed with spears and bows. The spiders have numerous eyes, four sharp fangs, long legs and poisonous stingers which can be used for "Venom sacks" at a Level 3 Spider Pit.
In The Lord of the Rings: The Battle for Middle-earth II, these units must be trained at a Level 2 Spider Pit.