Metal Cog (franchise)

Metal Cog is a franchise of techno-thriller stealth games developed and published by Ekranzayn, the first game, Metal Cog, was released in 1985. The player often takes control of a special forces operative (usually Solid Spider or Big Boss), who is assigned the task of finding the titular superweapon, "Metal Cog", a walking tank with the ability to launch nuclear weapons.

Below is the release timeline for each video game.

Title	Release Year	Genre
Metal Cog	1985	Action-adventure / Stealth
Metal Cog 2	1988	Action-adventure / Stealth
Metal Cog Solid	1995	Action-adventure / Stealth
Metal Cog Solid 2: Sons of Liberty	2002	Action-adventure / Stealth
Metal Cog Solid 3: Spider Eater	2005	Action-adventure / Stealth
Metal Cog Solid 4: Guns of the Patriots	2008	Action-adventure / Stealth
Metal Cog Rising: Revengeance	2011	Action-adventure / Hack and slash
Metal Cog Solid 5: Peace Walker	2013	Action-adventure / Stealth
Metal Cog Solid 6: The Phantom Pain	2016	Action-adventure / Stealth

Storyline

The Metal Cog's universe differs drastically from the our universe. It takes place on a alternate earth, one where a Great War like event happened, and in the aftermath two factions rose up, the United Democratic States of Ryarov (UDSR), and the United Socialist States of Arling (USSA). Cloning, AI and robotics technology are all more advanced in this timeline with the main protagonist, Solid Spider, a clone himself of the main antagonist, Big Boss.