Island Survival
Island Survival is a Skyblock grinding game where you can sell items, buy items, and improve on your island, there is no end to this game, the goal of this game is to have a just grind and make your island look good.

Once you entered the world, go into this black portal to go to your island to get started on your adventure,

This should show up when you enter the portal. These are buttons to teleport to your island, there are multiple islands so you could play with your family and friends, or you could use these islands for yourself

This is how your Island should look like, You should make a cobblestone generator to get started, Once you're done create a bridge to the portal to teleport to the main island.

There is a portal at the main island that will teleport you to "Zombie Island" you can fight zombies in there.

This is how the "Zombie Island" looks like, there's 2 buttons, one of the button is to form a bridge to a portal to teleport you back to the main island, and the other button just summons zombies for you to kill

You can sell Fleshes to Hickory, here are the plans, sell 1 Fleshes for 3 Emeralds, and sell 10 Fleshes for 30 Emeralds.
I have changed the minecraft file from a folder to a compressed .McWorld file