They’ve recently released a demo on Steam
Consumed by a mysterious curse, restore a once lush forest and its inhabitants to their natural state in this action adventure tale. Experience fast-paced combat, puzzles, and the beauty of nature captured in handcrafted pixel art.
🌐 Steam, Kickstarter
I can’t think of a single metroidvania where you can run immediately to the final boss and beat it without picking up anything. No the sheikah slate does not count. BotW is in no way a metroidvania. I would say Kloa is closer to BotW than any metroidvania is.