In this guide, you will come to know how to unlock the Secret Mission Lower Temple in Minecraft Dungeons. You have to follow each step carefully to complete this mission.
To unlock the lower temple mission, you must complete the desert temple mission. Once you get the golden key, you can use it to open the golden gate and go through it, as shown in the image below.
When you go to the other side, you will see a new section that has a portal of new maps within a map. Now you have to find and activate all three switches; these switches respawn in different locations. When you turn on all of these switches, it wil open a bridge between you and the platform. You will need to go through that bridge and see a table on the platform. There will be a scroll on that table; you have to grab that scroll to unlock the lower temple mission.
The next thing you will need to do is open the menu, go back to your camp and play the new secret lower temple mission, as shown in the image below.
The lower temple is a secret mission with a high amount of space and will explore new things. There will be very strong monsters and enchanted monsters at the difficulty, and you will also find a lot of good chests there in close vicinity.
When you start the level, you have to go to the point where you will find three red chests to loot. After that, you have to follow the path and complete the mission to get rewards and achievements.