Complete Guide to Finding All Keys in Indiana Jones and the Great Circle

Unlock the secrets in Indiana Jones and the Great Circle by discovering all the hidden keys essential for progressing through the adventure. This comprehensive guide reveals the locations of each key and details how to use them to solve puzzles and unlock doors, ensuring you don't miss any important secrets.

As in most adventure games, in Indiana Jones and the Great Circle, you will spend a lot of time exploring the hidden corners of the world in search of mysteries. However, you will often encounter locked doors on your way, behind which important resources and puzzles are hidden. Unfortunately, there will often be no obvious ways to open them. This is where hidden keys come in handy, opening up new opportunities for gamers.

The Rampart Key, which you will find in the Vatican, can be found on the wall in one of the castle's rooms. To reach it, just climb into the first building, get inside through the window, and go down the stairs below. This key opens the only door leading to the first section of the castle, thus providing a path to explore new, previously inaccessible parts of the territory.

The Guard House Key can be found in the first part of the castle, right in front of the Vatican, next to a two-story building that will be on your left. Keep moving straight, and soon you will see an iron door. Behind it, on the wall, you will find this key, as well as a lone guard. With its help, you can pick up some notes and money on the upper levels of the rampart.

Upon reaching the locked gates in the bastion according to the plot, turn around and go up the stairs located to your right. After climbing, turn right and enter the captain's office. On the wall in this room, you will find the key. Remember that the courtyard area is patrolled by an enemy with a dog, and two more enemies are waiting on the second floor. This key opens the castle gates, through which you can continue your journey to the main part of the Vatican. However, if you are attentive, you can find a bypass road and ignore getting the key.

You will receive this key according to the plot as soon as you open the door in Antonio's library and descend into the dungeon. If you haven't received it yet, keep following the storyline. This key opens various doors in the church sections of the Vatican, providing access to new parts of the location.

The next key can be found as you progress through the storyline tasks in the underground world of the Vatican, after you solve the The Sacred Wounds puzzle. It will be located next to the skeleton. This key opens the next lattice door in the room, necessary according to the plot.

During your journey, you will meet a girl named Gina, who will offer you a side quest called A Nun in Trouble. This quest will be the key to finding an important item. Upon completing the quest, a cutscene will occur where Juliana hands the key to the main character. It opens a door located in the Borgia Tower, behind which is a bottle of medicine and the secret Father and Son.

You will receive this key from Antonio as soon as you complete the Sacred Wounds quest and bring him the scroll. It will become an important item necessary for opening doors in the side quest The Mad Priest, allowing you to further progress in the adventure.

When you find yourself in the main part of the Vatican right after the castle, continue following the storyline quests. Upon meeting Gina for the first time on the balcony and looking at Voss's airship, move to the neighboring balcony using the rope on the right. Turning around, you will notice a hole in the fence that you can pass under. Jump down, defeat the three Nazis, and pay attention to the chair where the Blackshirt uniform will be lying. This disguise will significantly simplify completing further tasks in the Vatican, and with it, you will receive a key. It opens the door to your right when you first enter the main part of the castle, as well as the room behind the main courtyard wall, in a small camp.