SkyBlock survival lovers should appreciate the MiniSkyWorld. Here you have to develop on a very small island above the abyss without any help. There are some resources and food in the starting chest, but you should spend them very carefully and provide yourself with everything you need for survival as quickly as possible.
How to install MiniSkyWorld map
Download the archive.
Unzip its contents into the ‘saves’ folder located in the game folder.
Launch Minecraft, start a game, choosing the world MiniSkyWorld.