Sandraiders are a group of desert pirates that live in a town built into the side of a mountain, in Episode 3, Chapter 2, where they ambush the Waysiders. Their motive is never explained, but it is speculated to be that they attack anyone who comes past and take their Thermal Energy. They answer the call of the Ex-NEVEC Leader and are present during the final battle of Episode 6, Chapter 4.
They are extremely fond of Rifle SPs and VS Rifles, and are seemingly good shots with them.
Their leader is apparently an unmasked woman.
They are also featured in Lost Planet: Bound Raven.