Short version:

Amazing! Frustrating! Will definitely will buy the next one!

Please make more and make them faster! :P

Long version:

The visuals are amazing. I've been gaming for decades, and programming on the side as a hobby (using Unity), and really appreciate FPS type games with good visuals. Especially ones that remind me of Minecraft/ARK/Survival type games (one of my favorite genres). I love the focus effects! These projects of yours are SO immersive. Excellent work.

Contrariwise, from a gaming perspective I hate invisible walls and/or not being able to get to certain places that visually/physically speaking I should be able to get to. And there are a lot of them, unfortunately. When I'm forging out into waist deep water and am then teleported backwards to my starting point, however softly, I scream a little on the inside. When I'm walking through ankle deep water and suddenly I can't keep going and can't make it to the other side of the stream, I scream a little on the inside. :P

And please don't think that I fail to understand WHY this is the way it is, it's just frustrating as a long-time gamer.

Suggestions:

Consider spending a little more time on each level dumping some random foliage in the "empty" areas that are walled off, and then remove the invisible walls. Let us fall off cliffs if we want to. Let us climb over fences and run through open fields to the horizon. I understand at some point we're going to run into the outside wall of the "level", but as long as we're in the level we should be able to get anywhere we can physically travel to.

Which leads me to another point: consider adding some extra means of locomotion. Let us swim. Adding swimming to your animation controller is almost trivial in Unity, so I would imagine it would be relatively easy in Unreal as well. Let us jump! Crouching and going prone should be something we have access to immediately, and not be something that is gated.

The ultimate form of locomotion would of course be allowing us to fly, which from what I've managed to read here is possibly included in the form of the drone? I haven't gotten that far. But please consider allowing the player to fly as well. That's one of the easiest forms of locomotion to add to a controller, so why not?

Finally, please give us more preference options. Defaults could be how the game is at present. Extra options could allow the user to turn on personal flying, or toggle the ability to climb.

It seems like the focus of these projects is to showcase your ability to take a real landscape and realistically represent that in a virtual environment for people to enjoy. Mission accomplished, and very well done. However, the gameplay choices that you've chosen to incorporate are handicapped by the limitations that you place on the player such as lack of full locomotion, lack of accessibility to large portions of the environment, etc.

With all of that said, I can't stress enough how amazing these projects of yours are. My attention was immediately captured by the Australian teaser, and I was irrevocably hooked by the free Iceland demo. I definitely plan on buying your future projects!

Thank you so much for your time and talent!