This is my first Entry.
I have coded myself a custom engine in C using OpenGL. I have just fixed a lot of bugs regarding the World Generation resulting in this very smooth and giganting noise World.
The world is procedurally generated and can expand very far outside (depending on how much RAM you have). The Image attached shows the World that has been generated by exploration of 200 Entities in a few seconds. The World is made up of Chunks which are 16*16 Segments (or blocks might be more familiar to you). At the same time it has about 5 layers rendered ontop of each other giving the world the depth that it needs.
It is of course laggy when zooming out at this scale.