This is a bundle of material for Wildsea, an RPG set on a very odd post-human / transhuman version of Earth which three centuries earlier was taken over by a vast and extremely dangerous forest, causing the collapse of much of civilization. In the period of the game the forest is typically navigated by huge ships which "sail" the treetops using vast chainsaw mechanisms to gather fuel and other materials. To make life more complicated there are several intelligent races, there's magic, and the forest is not a friendly environment, the air and soil are poisoned with toxic material that is either the cause of its explosive growth or a byproduct.
https://bundleofholding.com/presents/Wildsea
This is a very strange setting, that seems to be inspired by a lot of sources including magical realism, Firefly, the writing of China Mieville, and I suspect countless others. I found myself reminded of the
The Edge Chronicles by Paul Stewart and Chris Riddell, and
Hothouse by Brian W. Aldiss, although the world depicted still has some technology. Presentation is good, though the pages are in landscape format which is undoubtedly intended mainly for use on screens and tablets, not so good if you like printed books. Art is good and avoids most of the usual genre tropes - people generally wear sensibly protective clothing, which seems appropriate to the setting, without going the spiky armour route.
This is a good looking game which has been recommended fairly widely, and the bundle is pretty cheap. I think it's well worth a look, but as I occasionally have to remind myself, I get to play with this stuff free - if you're paying for it your mileage may vary.