It is just strange to see the same game, on different game clients.
I just played game long ago, it means the first chapter. And hoped to play from the beginning but started only from new content(second chapter). Mostly game do accumulative way, when new content added to the same game client.
And this way is a little strange for me. Undertandable it is much easier way for Dev to work, when you do not need to work with variables and content from previous chapter.
Not that i have anything against it, but i do not think i have seen any info about it in OP. Not that it is big problem. There is not much in the second chapter right now.
I will just download first chapter and check if there is anything new after i played it.
And to answer i wanted to know if he planning 3rd chapter in another client , etc