One of the most unique block additions in Minecraft 1.21 is the vault. It rewards each player once, so it's quite a welcome feature on multiplayer servers. It also requires a key called the test key to open. Today we will talk about how you can get the test key in Minecraft 1.21 and how to use it.
How to get and use a test key and ominous sample key! (1.21+) | Simple Minecraft tutorial
You can only get the sample key in sample chambers, which are generated near the deep layer of the overworld. If you want to learn how to find sample chambers, we already have a guide in place to help you find them.
Currently, the Test Key can be obtained from three sources in this underground structure. You can get the trial key from the chest near the entrance (6.8% chance), decorated pots in the corridor (3.6% chance) and as a reward for completing the audition challenge (50% chance). Since you will most likely get this item from a test spawner, let's go over it now.
Trial spawner is a special spawner that summons a limited number of mobs proportional to the number of players joining the battle. If you are playing in a single player world, most testers will create 6 mobs at a time. First three mobs will appear and then when you kill one of them a new mob will spawn. If you manage to kill two mobs at once, the spawner will spawn two more.
