Metal Gear 2: Solid Snake

In 1999, a great scientist named Kio Marv invented "oilix", a special petroleum-purifying substance that was supposed to help in the upcoming oil crisis. Shortly after the invention became known in the world, Dr. Marv was abducted. An investigation showed that he was held captive in Zanzibar Land, an isolated state in Central Asia which was ruled by a group of mercenaries from all around the world. Having oilix in addition to nuclear weapons are bound to Zanzibar an invincible state that would s...