Assassin's Creed Brotherhood romulus lairs and Armor of Brutus: keys and route preparation
Learn the six-key requirement and prepare for the climbing, chases and secrets inside Romulus lairs.
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Edition covered
The original Brotherhood campaign and Rome activities. Ubisoft Steam pictures show the original PC release; The Ezio Collection visual changes and discontinued online services are outside this reference.
Collect the six Romulus keys
The Armor of Brutus is secured behind the Romulus treasure-room gate. Complete the six key-bearing lairs and return to the treasury; ordinary Borgia flags do not substitute for these keys.
| Objective | Requirement | Result |
|---|---|---|
| Romulus key | Finish a key-bearing lair | One part of the treasury unlock |
| All six keys | Complete the six lairs | Access to the Armor of Brutus treasury |
| Lair flags | Search side ledges and detours | Separate collectible progress |
| Full synchronization | Meet that lair’s listed condition | Improved memory completion |
Read lair routes vertically
Lairs mix climbing routes with switches, moving platforms and chases. Look for the next handhold above and to the side before repeating a jump toward an unreachable ledge.
| Obstacle | Useful approach | Avoid |
|---|---|---|
| Timed switch route | Study the exit before activating | Wasting the timer finding the first ledge |
| Long climbing shaft | Trace the handhold chain upward | Jumping at decoration |
| Moving target chase | Maintain the intended route | Stopping for unrelated loot |
| Hidden side passage | Check behind the main route | Assuming the finish contains every flag |
Separate the key from optional completion
A lair’s key, hidden flags and full-synchronization condition are separate goals. Check its DNA entry after finishing so you know whether a revisit is for treasure, flags or a specific performance condition.
Return when Rome opens further
Some lair entrances depend on story access or the surrounding environment. Continue the campaign and inspect the map again if an entrance cannot yet be reached safely.
Some lair entrances depend on story access or the surrounding environment.
References
| Reference | Website |
|---|---|
| Assassin's Creed Brotherhood publisher listing | store.steampowered.com |
| Original PC campaign guide | gamefaqs.gamespot.com |
| Borgia towers reference | www.gamepressure.com |
| Publisher PC manual | store.steampowered.com |