The original Metal Gear is released for the MSX2 home computer in Japan and Europe. The game introduces the concept of stealth action, emphasizing avoidance of enemy confrontation rather than direct combat, due to hardware limitations.

Metal Gear 2: Solid Snake is released for the MSX2 in Japan. This sequel expands upon the stealth mechanics and introduces a more complex storyline and character development. Considered by many to be Kojima's original vision fully realized before the jump to 3D.

Metal Gear Solid is released for the PlayStation, marking a significant transition to 3D graphics and cinematic storytelling. It becomes a critical and commercial success, popularizing the stealth genre and solidifying Kojima's reputation.

Metal Gear Solid 2: Sons of Liberty is released for the PlayStation 2. Known for its complex themes and meta-narrative elements, the game sparks considerable debate among players and critics.

Metal Gear Solid 3: Snake Eater is released for the PlayStation 2. This prequel focuses on Naked Snake (Big Boss) during the Cold War, introducing survival elements and a different tone compared to previous installments.

Metal Gear Solid 4: Guns of the Patriots is released for the PlayStation 3. This game serves as a conclusion to Solid Snake's story, featuring advanced graphics, gameplay mechanics, and a complex narrative.

Metal Gear Solid: Peace Walker is released for the PlayStation Portable (PSP). Kojima considers this the 'true' Metal Gear Solid 5. Features gameplay mechanics designed for co-operative play.

Metal Gear Solid V: Ground Zeroes is released as a prologue to The Phantom Pain. It offers a taste of the open-world gameplay and serves as a bridge between Peace Walker and the main story.

Metal Gear Solid V: The Phantom Pain is released. The game features an expansive open world, a base-building mechanic, and a complex storyline. Marked Kojima's final main Metal Gear title under Konami.