LEGO Batman: Legacy of the Dark Knight – Mayhem Collection arrives Sept 18th, gets a new trailer
Break out of Arkham in the upcoming Mayhem Collection pack for LEGO Batman: Legacy of the Dark Knight, which arrives September 18th. Take a look at the brand new gameplay trailer from Gamescom 2026!
It might have only been out a few months, but the LEGO Knight is getting a brand new DLC next month on September 18th with the release of the Mayhem Collection. This brand new DLC is packed full of content including a new mission focusing on the Joker and Harley Quinn as they try and organise a breakout from Arkham Aslyum.
As well as the story mission, players can also enjoy the Mayhem Mode - which sounds a bit like a roguelite, as you have time limited goals whilst being chased by Batman and Robin. Smash your way through the city to collect studs. Battle against A.R.G.U.S. Agents and members of Task Force X such as Deathstroke, Killer Croc, Captain Boomerang, Deadshot, King Shark, Polka-Dot Man, and other enemies from the DC universe.
If that wasn't enough you'll also get the Sinister Pack, featuring outfits for all the playable characters, a new vehicle (Jokermobile) and some Batcave items to spruce up your cave.
Sinister Pack DLC Content
- Batman – The Batman Who Laughs outfit (Dark Nights: Metal #2 | 2017)
- Robin – Robin King outfit (Dark Nights: DM – Legends of the Dark Knights #1 | 2020)
- Nightwing – Joker outfit (Nightwing #16 | 2011)
- Batgirl – Joker outfit (Jokerized DC Multiverse Action Figure)
- Jim Gordon – Joker outfit (The Joker: The Man Who Stopped Laughing #9 | 2022)
- Catwoman – Joker outfit (Catwoman #65 | 1993)
- Talia al Ghul – Joker (Earth-37) outfit (DC Elseworlds comic series | 1997)
- Vehicle – Jokermobile (Arkham Trilogy)
- Batcave Items – Helmet (The Merciless), Joker Fish Aquarium, Barbatos Statue, Snake Clowns, and Long Halloween Pumpkin
LEGO Batman: Legacy of the Dark Knight – Mayhem Collection launches on September 18th, and is included as part of the Deluxe Edition. Don't have the base game? You can also get the Deluxe Upgrade. The DLC may also be available separately.