TT Games has released Update 1.011 (1.011.000) for LEGO Batman: Legacy of the Dark Knight on September 29, 2026. This patch introduces the Mayhem Collection DLC and the high-stakes Absolute Difficulty mode across platforms including the recently launched Nintendo Switch 2 version.
The update follows the game’s September 18 arrival on Nintendo Switch 2.
Absolute Difficulty Mode
This free update introduces a significant challenge spike. Absolute difficulty modifies core combat and survival mechanics:
- Limited Health: Players operate with reduced health pools, increasing the stakes of every encounter.
- UI Changes: The removal of attack warnings requires players to read enemy animations manually to counter or dodge.
Mayhem Collection DLC
The headline addition for Update 1.011 is the Mayhem Collection. This expansion includes a new story mission centered on a breakout from Arkham Asylum. Players gain access to The Joker and Harley Quinn as playable characters.
The DLC also introduces Mayhem Mode, which allows players to cause chaos throughout the streets of Gotham City. To support this new content, the update adds 12 new trophies and achievements specifically tied to Mayhem Collection objectives.
Sinister Pack and Cosmetic Additions
Detailed in the official WB Games support notes, the update also incorporates the Sinister Pack. This content bundle provides a variety of customization options:
- Character Suits: Seven new suits are included.
- Batcave Customization: Five new items for the Batcave hub.
- Vehicles: One additional vehicle added to the garage.
Players on all platforms can now access these features, provided they have updated their client to version 1.011.000. While the Absolute difficulty is available to all users for free, the Mayhem Collection and Sinister Pack content require separate ownership.
