Indiana Jones and the Great Circle Unlockables: Complete Safe Codes Guide 2026 - Collectibles

Indiana Jones and the Great Circle Unlockables: Complete Safe Codes Guide 2026

Unlock every secret in the Vatican with our comprehensive guide to Indiana Jones and the Great Circle unlockables, featuring safe codes, skill books, and artifacts.

2026-05-16
Indiana Wiki Team
Quick Guide
  • Safe Codes: The Vatican area contains seven unique safes requiring specific four-digit codes found through environmental clues.
  • Key Unlockables: Opening these safes grants access to Combat Skill Books, rare Artifacts, and essential Medicine Location Maps.
  • Mystery Completion: Several safes are tied to specific Fieldwork missions like A Nun in Trouble and Father and Son.
  • Critical Clue: Always inspect items like ticket stubs, statues, and calendars to reveal hidden numbers.
  • Best Strategy: Complete the "A Nun in Trouble" quest early to obtain Juliana's Key, which is required for high-tier rewards.

Indiana Jones and the Great Circle brings the legendary archaeologist's adventures to life with a world filled with intricate puzzles and hidden treasures. Mastering the indiana jones and the great circle unlockables is essential for players who want to upgrade Indy’s abilities and uncover every piece of history hidden within the Vatican. From the dusty tents of the Belvedere Court to the hallowed halls of the Sistine Chapel, the game rewards thorough exploration and a keen eye for detail.

Whether you are hunting for skill books to improve your whip combat or seeking legendary artifacts to complete your collection, understanding the safe mechanics is paramount. This guide provides a definitive breakdown of all major unlockables in the Vatican region, ensuring you never leave a piece of loot behind. We will explore the specific codes, the clues required to find them, and the rewards that await inside each heavy iron door. By the time you finish this guide, you will have the knowledge to navigate the Vatican's most secure locations with the confidence of Dr. Jones himself.

Vatican Unlockables Overview

The Vatican serves as one of the most dense open-world areas in the game, packed with various indiana jones and the great circle unlockables that can significantly alter your gameplay experience. These rewards are generally categorized into three types: Skill Books, Artifacts, and Fieldwork progression.

Skill Books

  • Combat Upgrades: Enhances whip speed and melee damage.
  • Stealth Mastery: Reduces detection speed in restricted areas.
  • Health Boosts: Increases the total number of medicine charges.

Artifacts

  • Collection Value: High-value items for completionists.
  • Adventure Points: Large chunks of XP for character growth.
  • Museum Display: Unique historical items for Indy's journal.

Fieldwork Items

  • Medicine Maps: Reveals all healing locations in the zone.
  • Mystery Keys: Opens previously locked doors and shortcuts.
  • Narrative Clues: Unlocks lore entries and side quest paths.
Exploration Tip

Before attempting to crack every safe, ensure you have the Camera equipped. Many environmental clues for safe codes are recorded in your journal only after you photograph them, making it easier to reference the numbers without backtracking.

Unlockable TypePrimary BenefitDifficulty to Find
Skill BooksPermanent Ability UpgradesHigh (Requires Puzzles)
ArtifactsAdventure Points / XPMedium (Hidden Objects)
Medicine MapsSurvival UtilityLow (Quest Rewards)
Safe LootCurrency and GearVariable (Code Based)

All Vatican Safe Codes and Locations

Cracking safes is the most direct way to obtain high-tier indiana jones and the great circle unlockables. In the Vatican, there are seven primary safes, each tucked away in locations ranging from military tents to museum basements.

Video Highlights:

  • Detailed walkthrough for all 7 Vatican Safe Codes.
  • Visual locations for the Belvedere Court and Sistine Chapel safes.
  • Clue solutions for the "Secret of Secrets" and "Father and Son" mysteries.
  • Demonstrations of how to find hidden numbers on environmental objects.

The following table summarizes every safe location and its corresponding solution found in the Vatican area.

LocationSafe CodeClue SourcePrimary Reward
Belvedere Court Tent5238Ticket Stub (Front/Back)Combat Skill Book
Sistine Chapel Office4471Peter/Paul Statues & ChartSkill Book / Mystery
Post Office Cellar1136Guard's Note (Nov 1936)Money & Resources
Museum Garden Tent6380Letter & Calendar DateMedicine Location Book
Museum Basement7171Desk (Hidden by Lamp)Rare Artifact
Borgia Tower Room5873Poem & Square DiagramMystery Completion
Excavation Site1891Gina's Request NoteHigh-Value Loot
Enemy Presence

The Museum Garden and Excavation Site safes are heavily guarded. It is recommended to use stealth to clear the perimeter before attempting to input the codes, as the safe-cracking animation leaves Indy vulnerable to detection.

Solving the Complex Safe Puzzles

Some indiana jones and the great circle unlockables require more than just finding a note; they involve multi-step environmental puzzles. Two of the most challenging involve the Sistine Chapel's "Secret of Secrets" and the Borgia Tower's "Father and Son" mysteries.

1

The Secret of Secrets Statues

Inside the Sistine Chapel back office, locate the statues of Peter (with the key) and Paul (with the sword). Rotate both statues to find planetary symbols on their bases.

2

Planetary Alignment

Match the symbols found on the statues to the planetary chart in the same room. The code is determined by the planets' distance from the sun. The resulting code is 4471.

3

Father and Son Poem

After completing 'A Nun in Trouble,' use Juliana's Key to enter the room near Borgia Tower. Loot the poem and identify the circled letters: I, R, I, A, T, A, S, O.

4

Square Diagram Translation

Apply the circled letters to the square diagram found on the wall. Each letter combination corresponds to a digit, revealing the final solution of 5873.

Mystery Solved

Solving these complex puzzles not only grants the safe contents but also completes "Mysteries" in your journal, which provides a significant boost to your overall Adventure Points.

Fieldwork and Quest-Related Unlockables

Many of the most valuable indiana jones and the great circle unlockables are tied directly to Fieldwork missions. Completing these side objectives often provides the keys or information necessary to reach the safes mentioned above.

Fieldwork NameRequirementKey Unlockable
A Nun in TroubleAutomatic in VaticanJuliana's Key / Medicine Map
A Savage DiscoveryExcavation SiteCellar Key (Post Office)
Signs of TroubleFind Gina's Request NoteExcavation Site Safe Access
Father and SonComplete 'Nun in Trouble'Borgia Tower Room Access

One of the most useful items is the Medicine Location Book, found in the Museum Garden safe (6380). This item marks every available healing station on your map, which is vital for surviving the more difficult combat encounters later in the game.

Pro Strategy

If you miss a safe during a mission, don't worry. Most areas, including the Museum Basement and the Sistine Chapel, allow for backtracking or fast travel once the primary objectives are complete.

Vatican Completionist Checklist

To ensure you have collected all major indiana jones and the great circle unlockables in the Vatican, use the following checklist. This covers the essential items needed for a 100% area completion.

Vatican Completion Goals:

  • Unlock the Belvedere Court Safe (Code: 5238)
  • Solve the Secret of Secrets Mystery (Code: 4471)
  • Obtain the Cellar Key from the Excavation Site
  • Find the Medicine Location Book in the Garden
  • Recover the Artifact from the Museum Basement
  • Complete the Father and Son Mystery using Juliana's Key
  • Locate and open the Excavation Site Safe (Code: 1891)
Final Reward

Collecting all artifacts in the Vatican unlocks a special journal entry and a unique cosmetic upgrade for Indy's gear, visible in the main menu's collection gallery.

FAQ: Indiana Jones Unlockables

Q: What is the most important unlockable in the Vatican?

The Medicine Location Book (Code: 6380) is widely considered the most important as it reveals all healing spots, significantly increasing your survivability in the open world.

Q: Can I find the safe codes without the clues?

Yes, if you already know the codes (like 5238 or 7171), you can input them directly into the safes without finding the notes or ticket stubs first.

Q: Where do I get Juliana's Key?

Juliana's Key is a reward for completing the 'A Nun in Trouble' fieldwork mission. It is required to unlock the room near Borgia Tower for the Father and Son mystery.

Q: Are safe codes the same in every playthrough?

In Indiana Jones and the Great Circle, the safe codes for the Vatican area are static and do not change between different save files or difficulty settings.