What to know
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The five exclusive Batman variants are Detective Comics #27, Dark Knights of Steel, Black Lantern, The Dark Knight Returns, and the Golden Knight suit.
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Detective Comics #27 and Dark Knights of Steel / Black Lantern are tied to account–linking rewards via WB Games and HBO Max.
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The Dark Knight Returns Batman suit is a pre‑order bonus that requires a redemption code entered in the game.
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The Golden Knight Batman and three golden Batmobiles come from physical LEGO sets and their QR codes.
LEGO Batman: Legacy of the Dark Knight hands out five very distinct Batman suits as special unlocks, and each one comes through a specific method rather than normal in‑game progression. Here is exactly how to claim all five of those exclusive characters or suits, along with their associated vehicles and extras.

Batman’s five exclusive suits details
How to unlock Detective Comics #27 Batman
Detective Comics #27 Batman is the Golden Age‑style Batman inspired by his very first comic appearance. This suit is distributed as a free digital reward and is not tied to a mission or collectible inside Gotham.

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Create or verify a WB Games account
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Make sure you have a WB Games account already set up or create one using the same email you associate with your console or PC storefront.
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Connect the WB Games account to your platform
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On your console or PC, go into the account‑linking section of your system settings or the WB Games launcher.
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Follow the prompts to sign in with your WB Games account and confirm that it is successfully linked to your PlayStation, Xbox, Steam, or other platform profile.
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Launch the game and check for the unlock
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After the connection is active, start LEGO Batman: Legacy of the Dark Knight.
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When the game loads, look for a small on‑screen message stating that new content has been unlocked.
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Open the character and suit menu, then equip the Detective Comics #27 Batman variant whenever you want to use it.
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How to unlock Dark Knights of Steel Batman
The Dark Knights of Steel Batman suit gives Batman a knight‑like armored look, inspired by the DC event series of the same name. This is one of the two exclusive Batman skins you obtain by linking external services.

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Ensure your WB Games account is already linked
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Confirm that your WB Games account is already connected to your console or PC for the Detective Comics #27 suit.
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Set up an HBO Max account
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If you do not already have one, create an HBO Max account through the service’s official website or app.
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Link HBO Max to your WB Games account
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Inside the WB Games site or app, go to the account or profile section and look for the option to link or connect HBO Max.
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Follow the prompts to sign in with your HBO Max credentials and grant permission for the link.
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Start the game and accept the new content
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Launch LEGO Batman: Legacy of the Dark Knight.
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Watch for a pop‑up indicating that new exclusive content has been unlocked.
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Open the Batman suit menu and select the Dark Knights of Steel appearance.
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How to unlock Black Lantern Batman
The Black Lantern Batman suit is a darker, energy‑fueled version of the Dark Knight tied to the Blackest Night storyline. The good news is that you do not need a separate step here: it comes automatically with the Dark Knights of Steel unlock.

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Once you have successfully linked your HBO Max account to your WB Games account and then started the game, both the Dark Knights of Steel Batman and Black Lantern Batman will appear in your collection.

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Simply open the Batman suit selection menu and choose the Black Lantern variant instead of the standard or Dark Knights of Steel design.
This is effectively a two‑in‑one reward: linking HBO Max grants you both exclusive Batman suits at once.
How to unlock The Dark Knight Returns Batman
The Dark Knight Returns Batman suit is modeled after Frank Miller’s iconic version of the character, with a heavier, bulkier armor look. This variant is not available to all players by default and is tied to how you obtained the game.

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Make sure you pre‑ordered the game
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The Dark Knight Returns Batman suit is a pre‑order exclusive for the current storefront cycle. If you bought the game at launch without pre‑ordering, this suit is not available at present.
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Find your digital code
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After purchasing the pre‑order edition, the code is typically sent to your platform store inbox or email linked to your account.
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Make sure you have the code saved somewhere before you try to redeem it.
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Enter the code inside the game
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Start the game and go to the main menu.
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Navigate to the options or settings section, then find the Redeem Code option.
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Type in the Dark Knight Returns code exactly as shown, then confirm.
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After the code is processed, the suit should appear in your Batman costume list.
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If you did not pre‑order, there is no known alternative method to unlock this suit at this time.
How to unlock Golden Knight Batman
The Golden Knight Batman is a fully gold‑colored suit that looks like a gilded version of the classic costume. This one comes from a real‑world LEGO product and is not distributed through platform or store incentives.

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Purchase the correct LEGO set
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Buy the official LEGO Batman logo set that includes the QR code for LEGO Batman: Legacy of the Dark Knight.
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The code is printed on the front of the instruction booklet inside the box.
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Scan the QR code
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Go to the identity.lego.com website on a smartphone or computer.
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Use the QR scanner on the site and scan the code from the booklet.
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The site will generate a unique redemption code tied to that LEGO set.
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Enter the code in the game
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In LEGO Batman: Legacy of the Dark Knight, pause the game or open the main menu.
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Go into options or the code‑redemption section and select Redeem Code.
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Carefully type the code you received from the website and confirm.
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The Golden Knight Batman suit will be added to your suit collection.
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Once all five exclusive Batman suits are unlocked, you can freely rotate between them to mix up your playthroughs and lean into different themes, whether you prefer classic, armored, or fully golden versions of the Dark Knight. With the right codes and a linked account or LEGO set, collecting this entire set of variants is straightforward and gives you a solid roster of visual options for your runs through Gotham.