What is the difference between Sword Art Online and progressive?

What is the difference between Sword Art Online and progressive? Sword Art Online Progressive is originally a light novel retracing the story of SAO from the very beginning. It’s different from a remake in how it covers the first floors of Aincrad, the death game Kirito and Asuna are stuck in. This part of the story was not covered in the original SAO novels.

Sword Art Online Progressive is originally a light novel retracing the story of SAO from the very beginning. It’s different from a remake in how it covers the first floors of Aincrad, the death game Kirito and Asuna are stuck in. This part of the story was not covered in the original SAO novels.