Talk:Mountain Island/@comment-32770715-20181216171556/@comment-35772593-20190105215317

Yes you do, spoiler alert. When you craft the Hatching Enzymes and hatch the Sea Emperor Leviathan’s children, the baby Sea Emperors will produce some Enzyme 42, which when touched, cures the Kharaa virus. After the virus is cured, you must return to the Mountain Island and visit the ALien Enforcement Platform and disable the giant alien gun. Then, you can craft the Neptune(assuming you have the blueprints for it) and complete the game. :) literally MAJOR spoilers butttttt (0^0)