The Royal Treasure Key in "God of Heaven: Save 2" is a very useful special prop in the game. If you want to find the Royal Treasure Key, you can first defeat Christian and the Guards in the base, and then find it in the house. There are four floors, each with multiple rooms and a large number of boxes to search for.
How to find the Royal Treasure Key in Save 2
When you defeat Christian and the Guard, you can search for the Royal Treasure Key in the house. The house has four floors, each with multiple rooms and a large number of boxes to search for. However, no matter how many rooms you search and how many boxes you open, you can't find the key. In fact, the royal treasure house key is not in the building.
You need to go down to the ground floor and enter the storage room at the back of the house. There are some huge barrels there. In that room, you will see another door behind the room.
Step out of this room and you will enter the backyard of the building. You'll see some toilets on the right, go check out one of the open toilets. Surprisingly, the royal treasure house key is in one of the toilets. You need to snatch it out, add it to your inventory, and continue to the next part of the task.
