The Mark I Microfission Cell, usually shortened to MFIC, is a wondrous piece of technology and the greatest, most world-shattering product of the defunct Project LIBERTY. Its first iteration was designed in 1957 at the Blackburn Centre for Energy Studies within the Black Valley as part of a top-secret government project involving nuclear miniaturisation. It is essentially a nuclear microreactor, containing all of the components necessary for continuous and uninterrupted operation. The whole package is about 50cm tall and weighs some 25kg, including the MFIC's own 5L water reserve. In 1961, following the Oceanykan Revolution, President Alan Redfort authorised a technology transfer with The Union of Soviet Socialist Republics in exchange for military aid, giving the Eastern Bloc ⚒️ a definitive edge in the field of nuclear power over the Western Bloc 🦅.

MFICs are designed to generate a continuous 5kW of power for up to 3 years without refuelling. They leverage low-yield fission reactions powered by Nuclear Fuel, making them an immediate target for Atomic Regulations Enforcement Section oversight. Their operation is based on a sealed micro-reactor core with liquid sodium cooling systems and self-regulating neutron flux control, making them significantly safer and more efficient than large-scale nuclear reactors.

Oceanyka's MFIC production is monopolised by the partially state-owned ACME Atomics within the City of Cestlep. This company controls the production, sale and monitoring of exiting MFICs across Oceanyka, itself overseen by ARES. However, a significant number of rogue MFICs exist across the continent, typically bought and sold with Spielkarten. These are treated by the Oceanykan Federation as other rogue nuclear materials would: with extreme prejudice. The largest user of rogue MFICs is the Australian Emergency Committee, whose power armour and energy weapons are dependent on MFICs.