Currently flying is on a stamina system where you spend more the higher you are. You can stop to regain some stamina.
Honestly, the prey killed is left over from the previous version! It was meant to be removed.
The meat is a health pickup, but currently nothing can damage you. Only rabbits and a couple squirrels to hunt.
Along those lines, if you destroy the rocks that have pillars of light while you focus, they drop gold that you can eat to gain armour/scales.
I can see that the test area may be a bit too big. Later in development there will be a map, and you will be able to restore watch towers to fast travel between.
Swimming will be implemented, hopefully soon. Currently you will just float on the surface.
Thank you so much for trying Dyrid out! I really value your feedback!