Ultradense Extrusion is a technology on the Galactic Warfare technology tree with a research cost of 27000 . It unlocks two Special Modules (Fighters and Troops), requires research in Lepton Manipulation or in Entangled Systems, and allows further research in Dark Energy Shield and High Quantum Stability.
"Non-baryonic particles (like dark matter and dark energy) is [sic] pervasive throughout all matter of the universe. Certain ultradense metals, however, can create effective barriers to it."
"A requisite in a galaxy with baryonic and non-baryonic weaponry, these fighters are equipped with ultradense hulls and the latest weaponry."
"Both troop survivability and firepower are tied to integration of the latest particle weaponry into their mechanized suits. In particular, advanced materials technology is required to isolate troopers from particle effects."