Rails
New Rails for faster minecarts
Overworld Alternatives
Several items are renamed or retextured to fit with the overworld-only theme
Blackstone Pockets
Large pockets of Blackstone are uncommon in the deep underground
Deepslate Quartz
Quartz can be found as a normal ore
EMI 101
Using the EMI mod, simply look up "101" in your inventory to get started with all the changes and important new items