Ether One Walkthrough Ps4

As I'm sure you all know, Ether One is one of PSN's Free Games this. If you Google 'Ether One walkthrough Steam' there's a great guide that.

So something new appeared in my library called 'Ether One Redux' and I can't find any information about what it actually is. There's nothing on the product page about it, just the same Ether One and Deluxe edition that have always been there.

This 'Redux' thing seems to be free but why would I want to install two copies of the same game on my computer even if it was free? And it does seem to be the same game, from what little I can figure out without installing it. IS there any difference between the original Ether One and this 'Redux'? Is this some sort of sequel or bonus content? Why was there no announcement or any information put out about this? Vendetta online trade. I loved playing Ether One but this is just confusing.