Experimental Gameplay

Experimental Gameplay is a game option exclusive to. When enabled it allows players to test some unfinished or work-in-progress features.

Toggling
Experimental Gameplay is found in the world options when creating a world. Turning the option on does not disable achievements, however it can't be disabled after the world is created. Enabling it on an already existing world makes a copy called "[EX] World Name". The original world without experimental gameplay can still be played, although progress does not transfer through the two worlds.

Features
The point of Experimental Gameplay is for the player to look at some not-quite-finished features. There are 4 different toggles of Experimental Gameplay. These are:
 * "Holiday Creator Features"
 * "Creation of Custom Biomes"
 * "Additional Modding Capabilities"

As of Bedrock Edition beta 1.16.210.57, the following features are behind the "Caves and Cliffs" toggle in Experimental Gameplay:
 * All Copper Block variants
 * Copper Ingot
 * Copper Ore
 * Goats
 * Goat Horns
 * Lightning Rod
 * Powder Snow
 * Powder Snow Bucket
 * Pointed Dripstone
 * Sculk Sensor

History
試験的なゲームプレイ Jogabilidade experimental Экспериментальный игровой процесс