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Assassin’s Creed IV: Black Flag

Assassin’s Creed IV: Black Flag Platinum Guide (PS3, PS4)

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Assassin’s Creed IV: Black Flag

PS3 / PS4

Before replaying memories or spending time on Jackdaw upgrades, check the services required by the original game. The platinum includes multiplayer matches, three social discoveries and a ship plan tied to Kenway’s Fleet. Check the group-dependent modes early and try the Fleet as soon as it becomes available. Resynced on PS5 uses a separate list.

Original Black Flag on PS3 and PS4: both lists have the same 51 base and 10 add-on trophies. On PS3, check Kenway’s Fleet early: recent Destroyer unlocks do not establish that the Fleet plan can be obtained on a fresh save.

  • Required difficulty: Synchronization constraints matter, not a general difficulty setting.
  • Missable trophies: Memories support cleanup; multiplayer and social events depend on services.
  • Online: PS3 and PS4 require multiplayer and social discoveries. The standard route also uses a plan from Kenway’s Fleet.

Check your edition and services first

If your trophy list says original Black Flag, use the PS3 or PS4 checklist. Open multiplayer and try a public Game Lab match for Lab Technician; getting into the menu or a private match is insufficient. Both consoles show online trophy unlocks between November 3 and 6, 2026. These are recorded unlocks, not a guarantee of access in every region or at every time.

  • Distinguish the original PS3 and PS4 lists from PS5 Resynced.

Recover memory constraints

By The Book requires full main-memory constraints. Use the log to replay incomplete memories and read objectives before the decisive action. Present-day missions have their own milestones. Do not confuse them with Edward’s collections or social events encountered at sea.

  • Record unfinished constraints and present-day missions.

Upgrade before legendary ships

Collect wood, metal and plans as you explore, then check missing upgrades in the ship menu. Strengthen the hull, broadside cannons and mortar before the four legendary encounters. Against the paired ships, avoid sinking one while the other is still close to full health: weaken both before finishing either. Keep a separate checklist entry for the plan tied to Kenway’s Fleet.

  • Check hull, weapons and plans before legendary battles.

Check the Kenway’s Fleet blueprint

Try to open the Fleet in the Jackdaw’s cabin when it becomes available in Sequence 4. In the standard route, Scarlatina awards the map for the elite fire barrel storage blueprint buried on Isla Providencia. Fleet access issues have been reported on PS3. If it will not open and you have neither the map nor the upgrade, do not assume you can complete Destroyer on a fresh save. November 6 unlocks do not show how those players obtained the plan.

  • Confirm Fleet access, the Scarlatina map and the blueprint before finishing the remaining upgrades.

Distinguish social events from collectibles

Look for the three social discoveries: a social chest, royal convoy and white whale. Check that the game identifies them as social events: an ordinary chest or generic convoy will not count. The game must register one shared discovery of each type; three of the same kind are insufficient. If a location is empty, check connectivity and try another route.

  • Keep a separate list of social events.

Record modes, abilities and weapons

Finish Wolfpack Discovery, then use Wolfpack Unleashed to raise your multiplayer level to 55. Along the way use every ability and ranged weapon at least once, and log competitive modes such as Manhunt, Domination and Artifact Assault. Organise a public Game Lab session with other players, and finish a match with a customised ability set. The Blackbeard’s Wrath and Freedom Cry add-on groups are not needed for platinum.

  • Update the checklist while levelling.

Trophies to watch

By The Book

Complete 100% of all main mission constraints.

Replay memories with unfinished constraints.

Devil Of The Caribbean

Defeat all 4 legendary ships.

Upgrades and encounter-specific tactics come before legendary fights.

Sharing Is Caring

Share each type of discovery with friends once.

Social events are not ordinary map objects.

All Rounder

Play on every game mode, and use every ability and ranged weapon once in Multiplayer.

Record modes, abilities and weapons used.

Frequently asked questions

Does this guide apply to Resynced?

No. This page covers the original PS3 and PS4 lists. The PS5 remake has different requirements and a dedicated guide.

Can I earn platinum offline?

No. Multiplayer and social discoveries are required. In the standard route, the Fleet blueprint needed for Destroyer also depends on service access.

Is Freedom Cry mandatory?

No. It is separate from the trophies needed for Edward’s story platinum.

Does PS3 multiplayer access guarantee the platinum?

No. November 2026 multiplayer unlocks do not confirm Kenway’s Fleet access. Try it from the cabin when it unlocks and check whether you can earn the Scarlatina map.

Sources

Trophy lists

Buying the game

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