People often compare Minecraft to LEGO; both support open-ended creation (once you’ve mastered the crafting table, you can build nearly anything) and, of course, they share an essential blockiness. But I think this comparison is misleading, because a LEGO set always includes instructions, and Minecraft comes with none.
Minecraft is a game about creation, yes. But it is just as much a game about secret knowledge.
It’s not that secret, of course. From that first buggy release onward, all the ins and outs of surviving and building in Minecraft have been documented by players, on wikis and YouTube, in ever-increasing and now mind-boggling detail. Honestly, I have no idea how you would play the game without first browsing one of those wikis or watching one of those videos. Trial and error? There would be a lot of errors.