Looks like yet another stuffty Minecraft/Terraria clone. I don't care if they even label themselves as such a thing, Notch called Minecraft an Infiniminer clone when the only similarity was a block-based digging game.
This has a crafting mechanism, underground jungle, hell caves, underground glowing mushroom forests, and more.
Also, the quests are stuffty. "Go get me a new pet!"
"Oh," I think, "he'll have to find a pond and go fishing or something."
Nope, you just dig in the dirt until a goldfish bowl pops out. Not only is that unrealistic, but more importantly, it's boring and encourages you to grind along digging endlessly until you find what you're looking for.