they were the only "structures" that mojang had added to the game as of then and for that reason it just seems mysterious. The game wasn't even in beta versions yet and mojang still decided to add dungeons? There must be a reason to this?
Why not? That's a common element of open-world-like games, and Notch had already made games that resemble dungeon crawlers by the time he was working on Minecraft.
they were the only "structures" that mojang had added to the game as of then and for that reason it just seems mysterious. The game wasn't even in beta versions yet and mojang still decided to add dungeons? There must be a reason to this?
it might have been because of Notch’s other games he made and he originally intended minecraft to be ruby dung
Why not? That's a common element of open-world-like games, and Notch had already made games that resemble dungeon crawlers by the time he was working on Minecraft.