Deep within the shadowy confines of the Vatican Post Office cellar lies a tantalizing locked chest brimming with adventure gear. In Indiana Jones and the Great Circle, this puzzle challenges players to combine environmental clues, combat prowess, and historical awareness to reveal its secrets. Set against the backdrop of 1937, the game’s narrative weaves real-world history into intricate lockbox mechanics, rewarding keen observers with powerful upgrades.
Navigating to the Hidden Cellar
The journey begins in the Vatican City’s Via Di Belvedere area, specifically beneath the unassuming Post Office structure. Access to this underground chamber is gated behind progress in the A Savage Discovery fieldwork assignment, a side quest that unlocks the necessary key from excavation worker Giuseppe. Without completing this objective, the cellar door remains sealed, emphasizing the game’s design to integrate exploration with story beats.
Once inside, players descend into a dimly lit space filled with ancient artifacts and lurking dangers. The environment hints at forgotten treasures, with crates, shelves, and relics creating an immersive 1930s archaeological dig site. Stealth or direct confrontation becomes key here, as a single guard patrols the area, guarding both the quest’s stone tablet and the coveted lockbox.
Confronting the Guard and Securing the Clue
Upon entering and interacting with the central stone fragment, a cutscene triggers: a black-shirted guard hauls in a massive artifact, only to drop it in surprise upon spotting Indiana Jones. This sparks an immediate brawl, testing players’ melee combat skills in close quarters. Defeating the guard—via punches, improvised weapons, or whip takedowns—is essential not just for quest progression but for loot acquisition.
After the fight, the guard’s body glows, signaling interactability. Looting yields the Lockbox Note, a crumpled paper detailing a captain’s recent code change and a cryptic hint: “November, last year.” This document is the puzzle’s linchpin, transforming a simple chest into a brain-teaser rooted in the game’s timeline. The note’s lore adds flavor, mentioning stashed money, enhancing the immersive role-playing experience.
Decoding the Puzzle: From Hint to Combination
The code’s elegance lies in its simplicity, demanding players recall the game’s setting year—1937, as promoted by Bethesda. “November” translates directly to 11, the month’s numerical shorthand. “Last year” subtracts one from 1937, yielding 1936. Stripping the century prefix for a four-digit lock, the combination becomes 1136.
| Clue Element | Interpretation | Numerical Value |
|---|---|---|
| November | Month number | 11 |
| Last Year | 1937 – 1 | 36 |
| Final Code | Combined digits | 1136 |
This mechanic encourages meta-awareness, blending in-game notes with external knowledge. Input the digits on the chest’s dial—typically left-right-left motions in such puzzles—and it springs open, dispensing rewards.
Rewards and Gameplay Impact
Cracking the chest grants the Street Scrapper I Adventure Book, a skill upgrade boosting melee weapon damage output. In a game heavy on fistfights and improvised brawls, this tome elevates Indy’s street-fighting capabilities, making subsequent encounters less punishing. It’s particularly valuable early in the Vatican chapter, where guards swarm tight spaces.
- Damage Boost: Increases punch and weapon hits by a noticeable margin.
- Upgrade Path: Part of a series; collect others for escalating benefits.
- Strategic Use: Ideal for stealth knockouts turning into full fights.
Alternative Access and Replayability
Missed the chest during your initial A Savage Discovery run? No issue—the cellar remains accessible post-quest. Located directly under the Post Office fast-travel point, players can return anytime. The guard’s corpse persists, note intact, allowing code deduction even mid-campaign. This design promotes non-linear exploration, a hallmark of MachineGames’ titles like Wolfenstein.
For speedrunners or completionists, mark Via Di Belvedere on your map. Re-entering triggers no new events, but the chest stays locked until looted, ensuring fairness.
Tips for Seamless Puzzle Solving
- Save before the guard fight to retry combat without restarting the area.
- Examine all bodies post-battle; white glow indicates lootable items.
- Confirm the year 1937 via in-game menus or prior cutscenes if forgotten.
- Use the whip for quick guard dispatch, conserving health.
- Combine with nearby collectibles like letters or maps for 100% Vatican completion.
Common Pitfalls and Fixes
Players often stumble on the year clue, inputting 1937 directly (yielding 1137, a frequent fail). Others overlook the note amid loot frenzy or enter codes prematurely. A table of errors:
| Common Mistake | Why It Fails | Solution |
|---|---|---|
| Using 1937 | Ignores “last year” | Subtract to 1936 |
| Code 1111 | Repeats November | Pair with year digits |
| Missing note | No loot interaction | Check glowing body |
Patience and re-reading the note resolve most issues, reinforcing the game’s puzzle philosophy.
Integrating into Broader Vatican Exploration
This lockbox fits into the Vatican’s web of secrets, from hidden maps to multi-vault chains. Completing A Savage Discovery not only unlocks the cellar but advances artifact hunts, tying into the main circle motif. Pair it with Street Scrapper for brawling through guard posts, streamlining side paths.
The Post Office cellar exemplifies Indiana Jones and the Great Circle‘s blend of action, puzzles, and history. Similar chests dot the map, each demanding unique logic—from Roman numerals to constellation alignments—keeping exploration fresh across 20+ hours.
FAQs
What is the exact code for the Vatican cellar chest?
The code is 1136, derived from “November last year” in the 1937 setting.
Do I need to complete a specific quest?
Yes, progress through A Savage Discovery fieldwork to gain cellar access.
What reward does the chest give?
Street Scrapper I Adventure Book, enhancing melee damage.
Can I return if I miss it first time?
Absolutely; the area and note remain available anytime.
Where is the Post Office cellar located?
Under the Via Di Belvedere Post Office in Vatican City.
Advanced Strategies for Puzzle Enthusiasts
For veterans, experiment with stealth entries or no-combat clears using distractions. The cellar’s layout supports whip pulls from shadows, grabbing the note sans full fight. Track Adventure Books via the menu for progression trees, prioritizing combat nodes post-unlock.
Community mods (PC) may visualize codes, but vanilla play sharpens wits. Share screenshots of your loot haul on forums to compare Adventure Book synergies.
References
- How to Solve the Post Office Cellar Lockbox Code — Game8. 2024-12-15. https://game8.co/games/Indiana-Jones-and-the-Great-Circle/archives/488815
- Open The Vatican Post Office Cellar Chest — YouTube (PCGamePassPartner). 2024-12-10.
- Cellar Lockbox November Last Year Indiana Jones — YouTube. 2024-12-12.
- Indiana Jones And The Great Circle: Vatican Cellar Locked Chest — GameRant. 2024-12-14. https://gamerant.com/indiana-jones-great-circle-vatican-cellar-locked-chest-code-solution/
- How to get the cellar chest code — YouTube (VideoGamer). 2024-12-11.

