We were driven from the land and into the ocean, and we were taken from the ocean and forced to this world. Here we shall be like the tide and the storm, and we shall claim the Earth for Meridion.
— The Stormsiren

The Gibbering Hordes are denizens of old Malifaux, before the fall of the Tyrants. In the resulting war, they chose the wrong side and were cast into the ocean. Over the centuries, their forms twisted to accommodate their new lives, and as the years passed they began to forget... but numerous portals opening in the ocean dumped the Hordes onto Earth, shocking the creatures into a hunger-filled frenzy.

The Gibbering Hordes are amphibious creatures that dwell in many of Malifaux's waterways and oceans. Much of their intelligence has been forgotten in favor of sharp animal instinct and a desire to survive. Led by their more aware kin, the Hordes have decided to make the Earth their new home. A Gibbering Hordes army is focused on melee, using their seemingly infinite numbers to conquer their enemies.