If you are a fan of Zelda, or open world action RPGs, Oceanhorn 2 is an excellent game. It isn't hard, but has a lot of Easter eggs, and if you are like me, you will end up dying more from falling while exploring than NPCs.
The game itself is a little less than 3GB in size, but it really seems massive due to the open world.
When I first gave it a try, I thought the beginning area was the whole game, and was a little disappointed at first, but the game is really, really huge.
That said, you could probably finish the game in about 20 hours, although, it took me almost 50 hours, as I explored everywhere possible, even parts of the game that were unfinished and I found them due to glitches. The glitches are not common, and I only found them because I was trying to get to very remote areas that were not meant to be explored by jumping, or swimming beyond what was finished.