- Primary keyword: This Indiana Jones and the Great Circle 100 walkthrough covers every secret.
- Key mechanic: Use the Camera to document inscriptions for the puzzle log.
- Best strategy: Prioritize Stealth and environmental takedowns in high-security zones.
- Critical tip: Solve the Adamic Language puzzles by cross-referencing Laura's notes.
- Top choice: Upgrade the Whip early to unlock new traversal paths and combat moves.
Achieving a perfect completion in the latest Indy adventure requires more than just a quick trigger finger; it demands the keen eye of a world-class archaeologist. This Indiana Jones and the Great Circle 100 walkthrough is designed to guide you through every treacherous tomb and high-stakes heist the game offers in 2026. From the secretive halls of the Vatican to the sun-drenched pyramids of Giza, we have mapped out every collectible, hidden artifact, and achievement trigger to ensure you don't miss a single detail of the "Great Circle" mystery.
Whether you are navigating the complex mirror puzzles of ancient Egypt or engaging in fistfights with the Nazi occult division, our guide provides the tactical edge needed for Very Hard difficulty. This Indiana Jones and the Great Circle 100 walkthrough will break down the mechanics of the Adamic language, the locations of the hidden Stone Stelai, and the most efficient paths through the game's massive open-ended levels. Prepare your fedora and whip—your journey into the heart of history begins now.
Vatican City: Shadows of the Secret Archive
The journey starts in the heart of the Holy See. To achieve 100% completion in the Vatican, you must balance social stealth with traditional puzzle-solving. Your primary objective is to infiltrate the Apostolic Palace and uncover the truth behind the stolen cat mummy.
Video Highlights:
- Infiltration: How to navigate the Vatican post office without alerting guards.
- Puzzle Solution: The "Five Sacred Wounds" wine puzzle in the Tower of Nicholas V.
- Boss Fight: Tactics for surviving the first encounter with the Giant, Locus.
The Vatican section introduces the Camera mechanic, which is essential for the Indiana Jones and the Great Circle 100 walkthrough. You must photograph specific inscriptions to unlock the path to the "Underworld" beneath the tower.
| Location | Key Objective | Hidden Collectible | Completion Requirement |
|---|---|---|---|
| Library | Find Crescenzo's Diary | Medieval Journal Page 1 | Document 3 Inscriptions |
| Sewer System | Navigate to the Tower | Roman Burial Coin | Unlock the Secret Gate |
| Tower of Nicholas V | Wine Basin Puzzle | Golden Cross Artifact | Defeat Locus (Boss) |
| Museum | Meet Gina Lombardi | Juliana's Ring | Retrieve the Cat Mummy |
While disguised as Father Gallagher, avoid running or climbing in front of the Swiss Guard or Black Shirts. Suspicious behavior will trigger an immediate identity check, leading to a difficult combat encounter.
To progress through the secret monastery of the Nephilim Order, you must solve the Wine Basin puzzle. This requires placing specific items in the hands of statues representing the sacred wounds of Christ.
Acquire the Wine
Locate the Vatican Pharmacy and find the medicinal wine. You may need to distract the pharmacist or use a stealthy takedown on the nearby guard.
The Five Basins
Fill the basins in the order of the sacred wounds: Hands, Feet, and Side. The Side basin requires the Spear of Longinus prop found in the nearby storage room.
Chemical Reaction
The wine will react with the stone basins, triggering the pressure plates that open the floor leading to the Warrior Giant's tomb.
Giza Plateau: The Enigma of the Sphinx
Giza is the largest hub in the game, filled with Nazi encampments and ancient secrets. A true 100% run requires finding all five Stone Stelai and solving the Dream Steely riddle located near the Great Sphinx.
Exploration
- Use the Lighter in dark tombs
- Locate all 5 Stone Stelai
- Map the Nazi radio frequencies
Combat
- Use environmental traps (scorpions)
- Master the "Whip Disarm"
- Clear the Detention Center stealthily
Puzzles
- Align the Great Pyramid mirrors
- Decipher the Adamic altar
- Unlock the Queen Mother's chamber
In Giza, always carry a torch or a lighter. Many tombs are infested with scorpions that are repelled by light. Standing in the dark for too long will lead to a rapid health drain.
The mirror puzzles in the Tomb of the Guardians are a highlight of the Indiana Jones and the Great Circle 100 walkthrough. You must manipulate beams of light to activate ancient mechanisms.
| Puzzle Stage | Mirror Location | Target | Reward |
|---|---|---|---|
| Entrance | Main Pedestal | Guardian Statue Eye | Opens the First Gate |
| Scorpion Pit | Upper Ledge (Slide) | Central Altar | Repels Scorpions |
| Final Chamber | Rotating Base | The Three-Eyed Gate | Access to the Idol of Raw |
Adamic Language and the Great Circle
The core mystery involves the "Adamic" language—the supposed first language given to man. Deciphering this is mandatory for the Indiana Jones and the Great Circle 100 walkthrough, as it unlocks the final chambers in each major region.
The language is a mix of Sumerian cuneiform and unique symbolic glyphs. You will find translation notes in Laura Lombardi's notebook, which you retrieve from Voss's office in the Nazi compound.
| Adamic Glyph | Phonetic Translation | Meaning | Context |
|---|---|---|---|
| LIsam | Light / Sun | Activation | Used in Mirror Puzzles |
| Meer Vuh | Earth / Fold | Movement | Used for Secret Doors |
| H Shon | Guardian / Giant | Protection | Refers to the Nephilim |
| Salim | Peace / Sealed | Completion | Final Altar Activation |
When at the Adamic Altar near the Sphinx, use your camera to take photos of the individual glyphs. You can then arrange these photos in the UI to "speak" the words and trigger the residence chamber's mechanisms.
Combat and Boss Strategies
Combat in The Great Circle is a blend of brawling and tactical whip usage. On Very Hard difficulty, you cannot simply trade blows with enemies.
Locus (The Giant) Strategy: Locus is impervious to standard punches. To defeat him in the Vatican and the Himalayas, you must use the environment. In the Vatican, lead him under the hanging chandeliers and use your whip to drop them. In the Himalayas, use the ship's narrow corridors to limit his movement and strike his unarmored legs.
Emmerich Voss Strategy: Voss relies on his guards and long-range firearms. The key to this fight is staying mobile. Use the whip to pull environmental objects (like crates or explosive barrels) toward him. When he reloads, close the gap for a melee combo.
| Enemy Type | Weakness | Recommended Tool | Priority |
|---|---|---|---|
| Black Shirt | Stealth Takedown | Hands/Cosh | Medium |
| Nazi Officer | Headshots | Revolver | High (Calls Reinforcements) |
| Swiss Guard | Disarm & Counter | Whip | Low (Avoid if possible) |
| Giant (Locus) | Environmental Damage | Whip / Trap | Boss |
The whip is not just for swinging. You can use it to trip running enemies or pull the helmets off armored soldiers, making them vulnerable to a single knockout blow.
100% Completion Checklist
To ensure you have followed the Indiana Jones and the Great Circle 100 walkthrough to its conclusion, use this checklist to track your progress across all major milestones in 2026.
Total Completion Goals:
- Collect all 45 Historical Documents
- Find all 30 Hidden Artifacts (Museum Grade)
- Solve the Adamic Language Altar in Giza
- Complete the 'Great Circle' Map in the Journal
- Unlock the 'Archaeologist Extraordinaire' Achievement
- Defeat Locus in the Himalayan Shipwreck
Many achievements are tied to specific "Indy Moments." For example, the "Hat Trick" achievement requires you to retrieve your hat 10 times after it has been knocked off during a fight.
FAQ
Q: How do I find all the Stone Stelai for the Indiana Jones and the Great Circle 100 walkthrough?
There are five Stelai in Giza. One is in the flooded tomb, one is held by a merchant in the village, one is in the Nazi detention center, one is found in the Queen Mother's chamber, and the final one is awarded by Professor Savage after rescuing Sydney.
Q: Can I go back to previous areas like the Vatican?
Yes, once you reach the Giza hub, you can use the 'Travel' option in your journal to return to the Vatican to find missed collectibles, provided you have the necessary keys unlocked.
Q: What is the best way to handle the mirror puzzles in Giza?
Always look for the 'Third Eye' symbol on the walls. Beams of light must pass through these symbols to activate the ancient gears. If a mirror is missing, look for a nearby breakable wall or a ledge Indy can climb.
Q: How do I translate the Adamic language without the notebook?
While it is possible to brute-force some puzzles, the game is designed for you to find Laura's notebook in the Nazi compound. This provides the phonetic keys needed for the residence chamber and the final Great Circle altar.