Skullcrusher is a high population PvP realm that was opened on launch day. At one point, statistics revealed that Horde actually outnumbered Alliance.

Skullcrusher is part of the Ruin Battlegroup.

Skullcrusher was previously a candidate for character transfers to Mug'thol, Smolderthorn, Spirestone, Cho'gall, Alterac Mountains, and The Underbog.