| DLC Name | Developer | Approximate Length (PC) | Key Features & Highlights | | :--- | :--- | :--- | :--- | | | Rocksteady Studios | 3-4 hours | The best DLC pack for Arkham Knight . It adds four fully-fledged Most Wanted side missions featuring fan-favorite villains missing from the main story: Mr. Freeze, Ra's al Ghul, Killer Croc, and Mad Hatter. | | A Matter of Family | WB Games Montreal | 1.5-2 hours | This is the longest of the Arkham Episode DLCs. Players take control of Batgirl in a prequel story set in an eerie, enclosed amusement park. Praised for its atmosphere reminiscent of Arkham Asylum and as a great backstory for Barbara Gordon. | | The Season of Infamy stands out as the most universally acclaimed expansion. Fans and critics alike praise how seamlessly its four villain-themed quests integrate into the main game's narrative, with the poignant Mr. Freeze mission often cited as a series high point. |

Click the three dots on the game tile and select Manage Add-Ons to toggle your owned content.

The most stable way to get the "patched" version of the game is through official launchers, which include all post-release bug fixes automatically.

: Patches improved memory optimization, significantly reducing the "hitching" during Batmobile sections.

: If you own the Season Pass, right-click the game in your Library > Properties > DLC . Ensure all boxes are checked; Steam will then queue the downloads.

If you downloaded the DLC but it shows up as "Not Installed" in-game, or if the game crashes when loading a specific Arkham Episode, your game files are likely misaligned. You must force the client to scan and patch the directory structure. Steam Integrity Check

Assuming you’ve purchased the Premium Edition on Steam, here’s the exact process for a clean, patched DLC installation:

Resolved issues where character switching would crash or render improperly in certain languages. DLC Content Included

If you are looking for a bug-free, fully updated copy of Batman: Arkham Knight along with all its incredible DLC—including the Season of Infamy story expansions, the Batgirl: A Matter of Family prequel, and all challenge maps and Batmobiles—the safest and most reliable way to play is grabbing the official game on Steam.

Force the game to use or Proton GE via the game's compatibility settings.