Update: I wasn't aware PlanetMinecraft had a 15MB upload limit and the map is now 50mbs due to all the updating to 1.19. I've taken the liberty of putting the Yogscast Survival Island map into my dropbox for hosting, so please enjoy yourselves and have fun. Thank you to the Redditors and commentors for pointing that out for me, I wouldn't have noticed otherwise.

Update 2: In the spirit of the original Survival Island, I've added several variations of the Survival Island map to the zip folder so you can now play.

Yogscast Survival Island
Yogscast Survival Island - HARDCORE - Easy Mode
Yogscast Survival Island - HARDCORE - Normal Mode
Yogscast Survival Island - HARDCORE - Hard Mode

I discovered in my save files that I had a copy of an updated version of Ashien's Survival Island map that the Yogscast used in their Survival Island series. I've painstakingly rebuilt their Survival Island to match The Yogscast map; that they played on! Complete with the same challenges they faced, additionally. The map has been updated to 1.19. And I've added a version of my own airship that comes complete with my own list of challenges if anyone wishes to take the true Survival Island challenge.

Credit to Ashien for coming up with the original map, and shout out to the Yogscast for making this map so popular. I hope everyone enjoys the Survival Island challenge, and I recommend setting the render distance to 6 Chunks for an optimal experience.

The Rules:
#1: Do not leave the Island
#2: Don't use mods that allow you to cheat (Inventory editors, flying, etc.)
#3: Play on easier or higher!
That is for the rules, other than those 3, you may do whatever you wish to the tiny island.

Original Challenges

1. Build a two-story house/base with at least 20+ windows.
2. Build 10 bookcases.
3. Build an automated cactus farm.
4. Build an underground tree farm.
5. Build an above-ground animal trap.
6. Build a drowning trap around the skeleton spawner.
7. Build a cart system.
8. Build something with Redstone.
9. Gather 10 unused diamonds.
10. Find the treasure left behind by the Lost Curator.

My Challenges (After completion)
Find my lost Axolot.
Enter the Nether
Solve my Riddle and face your fears.