[tohmasu]

I believe The Settlers pioneered this mechanic in 1993. In the Settlers II at least, supply block wasn't a matter of constructing additional pylons but rather "someone has to carry feed to the pig farmer so that someone else can carry pigs to the butcher so that..."

[AussieWog93]

I was going to say the same thing. I played Settlers III as a kid and while it was an interesting gimmick it was honestly pretty cumbersome.

[lostmsu]

I got Settlers II HD Edition on GoG, and it made us a couple of good evenings.

[universa1]

And there's a new one in the making, hopefully sticking to the more classical settlers 2-4 mechanics and feel... And not the later iterations of the series...

There is also Foundation, by a smallish canadian studio (iirc), that kinda is a mix between settlers and sim city :-)

[kzrdude]

There is an open source reimplementation of the settlers II engine, called RttR and it works flawlessly (better than the original for me).

There's also an open source clone of Settlers II called Widelands.