I've been playing PoE since open beta only, so I'm used to maps as the end-game content. However, from what I read, before maps were introduced in patch 0.9.11, some area called the Maelström of Chaos served as the end-game content. I have also read that it was made from different tilesets, but I cannot find any exact information about it.
So a question to those who played in closed beta: what was the Maelström of Chaos?
Best Answer
The Maelstrom of Chaos was a series of random areas, with random monsters that increased in difficulty the further in you went.
You can find all the info on how and why it was created straight from GGG here.
Specifically, you are looking for the section marked: