Konami and Kojima Studios (or at least Kojima before he got his own studio)
Kojima Productions created the Metal Gear Solid series. They are published by Konami.
Metal Gear Solid was created on 1998-09-03.
Metal Gear Solid Mobile was created on 2008-03-19.
Metal Gear Solid Touch was created on 2009-03-18.
Metal Gear Solid HD Collection was created on 2011-11-08.
Metal Gear Solid Original Game Soundtrack was created on 1998-09-23.
If you mean story wise then I believe it goes: Metal Gear Solid 3: Snake Eater Metal Gear Metal Gear 2: Solid Snake Metal Gear Solid Metal Gear Solid 2 Metal Gear Solid 4 But I may be wrong, and that isn't counting either of the Portable Ops games.
metal gear solid1, metal gear solid 2 sons of liberty, metal gear solid 3 snake eater, and metal gear solid 4 guns of the patriots.
Hideo Kojima.
Metal Gear Solid, Metal Gear Solid 2: Sons of Liberty and Metal Gear Solid 3: Snake Eater
Metal Gear Solid happened in 1998.
Metal Gear Solid 4: Guns of the Patriots