Do you enjoy playing in survival mode? In Minecraft, there are countless maps available, but are you tired of them and looking for something fresh? Download the mod titled Upside Down, which will transform your existing worlds! (Currently available only for Windows 10 PC)
In the world settings, select “Use Experimental Gameplay”
Enable “Activate Cheats”
This mod may corrupt your world, so please create a new one before using it
Every block and creature in the overworld will shift from Y=127~0 to Y=128~255.
There is a function called anti-falling_block (anti-fall block), and if it interferes with your mining, you can disable it by turning off “Activate Cheats” to deactivate that function.