Having just discovered AnyCraft, I now have two separate installations of Minecraft, so I can keep one unmodded so it doesn't get broken by updates, and mod the hell out of the other.
I've installed the Aether mod, but in order to actually reach the Aether I need glowstone, which means getting to the Nether first. From a brand new world, that might take a while, so what else can I do to add new and exciting stuff while I curse my stupid luck and fail to find any diamond anywhere?
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"I'm Commander Shepard, and you're standing in the biggest library in Citadel Space. Look me up."