10 MORE Video Games You Didn't Know Were Connected

7. Metal Gear Solid/Silent Hill

The Metal Gear Solid and Silent Hill franchises were of course both published by Konami, but the nods between the two series ultimately prove a little too intimate, pointed and downright discomforting to be merely playful, disposable references.

For starters, in the Graniny Gorki lab section of Metal Gear Solid 3, enter a library-like area and you'll see paintings of Alessa Gillespie from the first Silent Hill and also of God from Silent Hill 3.

Things get much more interesting when we consider Metal Gear Solid V, which includes numerous nods to Hideo Kojima's P.T., the Playable Teaser for what was intended to become the new Silent Hill game, Silent Hills (before Konami unceremoniously canned it).

Originally, Hideo Kojima intended for Big Boss to be able to deploy a decoy version of P.T.'s terrifying Lisa to distract enemies, but it was cut from the final game. As for what actually made the retail release?

In the Ngumba Industrial Zone, you can find a tent with a radio (well, a boombox) airing the very same deeply unsettling broadcast about a series of murders that was featured previously on P.T.'s grotty radio.

Elsewhere, you can find a song from P.T. on one of MGS V's cassettes, and numerous other sound effects and environmental objects which were "re-purposed" for the AAA sequel.

On the flip side, a teaser trailer for P.T. provided a grotesque cameo for Chico, who rather infamously appeared in the MGS V prologue Ground Zeroes. In the P.T. trailer, his severed head can briefly be seen screaming as it sprouts tentacles from its mouth. Charming.

It follows that a games developer as singular - and, let's face it, as bats*** crazy - as Hideo Kojima would find a way to link two otherwise disparate IP together.

Quite how the internal logic operates is anyone's guess, but hasn't that always been the case with Kojima? And isn't that why we love him so?