Meld (EU2012)

The Meld is an alien substance whose precise origin and composition are unknown but which allows the aliens to perform cybernetic and genetic modifications on life forms, including humans. After its recovery from a battlefield and upon completing the necessary Research, the Meld can be used by XCOM to transform soldiers into Mech Troopers or to perform genetic augmentation on different parts of their bodies.

The Meld can only be recovered from the aliens, during Abductions or UFO missions, where there will be canisters spread around randomly on the battlefield. The containers are equipped with self-destruction devices with timers so it will be necessary to reach the canisters before time runs out to capture the substance.