This is my own design of skyblock.
-It has no other islands except the main island and the nether is completely empty (i think...)
-The end is playable but I don't think anyone will get there without cheats... prove me wrong.
-This map is achievement friendly and I will upload a completely void map soon.
Until then, just use this map as a completly void map by destroying whetever you don't need.
Overworld:

Nether:

Yes. It is EMPTY.
End:

When I enter the end I got the spawn at these co-ordinates, it could be different each time. I'm not sure.
But the portal is at 0, 0. If that makes it difficult to play then I could raise it to around y 32 but I don't want to make it to high up.
Map Details:



If you don't turn on any cheats, the map will be achievement friendly.
Shameless plug:
Pls check out my vids on my channel:
https://www.youtube.com/@creativeiki/videos
thx for trying my map :D