I think it's fragmented into many things. If it's playing with the finished article, there's an amazing depth of vehicle simulation games. If it's the building, there's any number of epic Minecraft builds. If it's the detailed simulations then I think it's harder to demonstrate that there's a large number of them about, but Dwarf Fortress is categorically someone building an epic interconnected ecological web of dwarves.
And we must also consider the availablity of 3D printing, where one can make a model of a real world thing and make it real once again.