Finally, the moment we’ve all been waiting for has arrived. The latest snapshot 23W45A has just been released and by enabling the Minecraft 1.21 update experiments, we can experience for the first time the new exciting structure: Trial Chambers. So let’s not waste any more time and dive in!
Generation of the Trial Chambers revealed
Trial Chambers only generate in the Overworld dimension. Moreover, you will usually encounter them exploring the deep slate layers. But occasionally parts can even appear in the stone layers. So unlike the old citiestasting rooms do not generate too little in the world.
Structure of the process chambers in snapshot 23W45A
The structure of the test rooms varies widely. You will find both small and large rooms. Additionally, the rooms in these buildings are procedurally generated, meaning there cannot be two identical trial rooms. Next you will find corridors, tunnels, tight rooms and wide open large rooms. This structure consists mainly of various tuff and copper blocks.
There are even flower pots, flower pots with dead bushes and candles scattered everywhere as decoration. Stairs and ladders connect the floors. Although, just like in the strongholdsthe passages can be dead ends.
Dangers of the process chambers
Because the tasting rooms are quite well lit thanks to the new one copper lamps Because they are ubiquitous, natural enemy mob spawns are uncommon. But since this structure was created with a combat challenge in mind, you can expect it to be quite difficult. The biggest dangers come in the form of trial spawners. They are special mob spawners that adjust to the number of players nearby and summon a sufficient number of mobs. Each trial room includes three categories of mobs:
- Melee (Zombie, peel, slime)
- Small melee (Spider, Cave Spider, Baby Zombie, Silverfish)
- Reaches (Skeleton, Lost, Skeleton with poison-tipped arrows)

Furthermore, each room only spawns the same mob from each of the categories. These special spawners give players a hint as to the type of mobs that will spawn, indicated by the blocks surrounding them. According to our tests, when playing solo you will usually have to deal with three mobs at once. After you defeat them, the spawner will go into a cooldown state that lasts 30 minutes.
One type of trial spawner also spawns a brand new mob: Wind. It’s a wind-controlling gang with special ranged attacks that players can knock back and interact with certain blocks.

Finally, you will also encounter traps in the form of dispensers filled with arrows, fire charges, snowballs or water buckets. But you can also use them against the enemy gangs.
Loot the process chambers in Snapshot 23W45A
There are several ways to obtain loot in the Trial Rooms. You’ll find supply chests and barrels containing items and blocks to help you navigate the structure. These can be torches, wooden blocks, food and more. Reward Chests offer you more valuable loot, such as enchanted iron armor, weapons and tools, enchanted books, precious materials, etc. However, keep in mind that they are guarded by the trial spawner mobs.
In addition, you can break decorated pots placed around it to obtain precious materials such as amethyst shards, lapis lazuli, emeralds, iron ingots, copper ingots and even a new item – Trial key. A special new item that currently has no uses. After completing the trial spawner challenge, you will also receive valuable materials proportional to the number of players who participated in the battle.

Since development is still ongoing, all features mentioned may change until the final official release. That said, that’s about it. If you want to know more about the Minecraft 1.21 features, feel free to check out our other guides where we cover them in detail. What are you most excited about from the process rooms? Let us know in the comments below!