This is the unofficial Naked & Afraid datapack, fully made by BlaZzy. This datapack includes:
You will take damage if armor is worn.
Totem of undying are disabled.
Death messages don't show up, but they will make a sound that everyone can hear.
The world is set to be a hardcore world (difficulty to hard and can't respawn).
Natural regeneration is turned off.
Advancements don't show up in chat.
The locator bar is turned off.
For a full N&A experience...
Some things are not possible through datapacks. If you want a full Naked and Afraid experience, you need to:
On a server, add Simple Voice Chat or any proximity chat mod.
Use a plugin to make sure no one can use the chat on your server.
How To Use:
To play with the datapack, you can either: Put the datapack into the datapacks folder of the selected Minecraft world and then reload the world by either quitting and rejoining if it is a single-player world, or by restarting the server.
Alternatively, when creating the world, you can go into: More -> Data Packs -> Open Pack Folder and drag the datapack into the correct folder. Once this is done, you just need to activate the datapack and create your world.