Reddit mentions of Metal Gear Solid V: Ground Zeroes (PS3)

Play then in release order:

Metal Gear

Metal Gear 2: Solid Snake (It’s debatable whether you need to play MG 1 and 2, but if you don’t, you need to watch some gameplay)

Metal Gear Solid

Metal Gear Solid 2: Sons of Liberty

Metal Gear Solid 3: Snake Eater

Metal Gear Solid: Portable Ops (some consider this non-canon as it wasn’t directed by HK but it doesn’t affect the overall story if you consider it canon)

Metal Gear Solid 4: Guns of the Patriots

Metal Gear Solid: Peace Walker

Metal Gear Rising: Revengeance (same situation as Portable Ops, it’s amazing though so play it)

Metal Gear Solid V: Ground Zeroes

Metal Gear Solid V: The Phantom Pain.

The best way to play the entire series is to pick up a PlayStation 3, as you can play every main series game on that beautiful console.

Metal Gear 1-2, MGS 1-4 and MGS: Peace Walker are in the Metal Gear Solid: Legacy Collection:

https://www.amazon.co.uk/dp/B00KTZELMY/ref=cm_sw_r_cp_api_i_z.6kDb96JQQGV

Metal Gear Rising: Revengeance:

https://www.amazon.co.uk/dp/B006T960GE/ref=cm_sw_r_cp_api_i_Ua7kDbY6WFGGZ

Metal Gear Solid V: Ground Zeroes:

https://www.amazon.co.uk/dp/B00GRMMQDY/ref=cm_sw_r_cp_api_i_2b7kDbXDMPPP2

Metal Gear Solid V: The Phantom Pain:

https://www.amazon.co.uk/dp/B0146JO2AO/ref=cm_sw_r_cp_api_i_Ic7kDb0G2ZD39

Portable Ops is only on PSP and hasn’t been ported to consoles which kind of tells you how Konami and HK see that game...

Aside from the mainline canon games there’s:

Metal Gear (NES)

Snake’s Revenge (NES)

Metal Gear: Ghost Babel (GameBoy Color)

Metal Gear Solid: The Twin Snakes (GameCube) [This is actually canon, it’s just a remake of MGS1]

Metal Gear Ac!d (PSP)

Metal Gear Ac!d 2 (PSP)

Metal Gear Survive (PS4/Xbox One)

Play the games in the order I stated. Don’t read anything about them. Don’t read reviews. Don’t look at the wiki to try to make sense of confusing things like I did. Just experience the twists and revelations as they happen. Enjoy. ✌️