The largest class of weylforge, using the energy output of a neutron star rather than a conventional sun for power.
Hyper-forges employ a modified Matrioshka multi-shell design to capture as much of the neutron star's output as possible. Neutron stars radiate from 20-100 thousand times the energy of a Sol-type (G3) star and hyper-forge wormhole production reflects this.
There are no more than a dozen hyper-forges, known or rumoured to exist, within the Terragen Sphere. These are usually around neutron stars in close proximity to younger suns which are a convenient source of raw materials and 'gravitic infall' peak power flows.