Master LEGO Batman Legacy: Linux Setup, Co-Op and Achievements

Last Updated on 29 May, 2026

Whether you want to optimize your hardware setup, break free from character restrictions in local multiplayer, build an endless fortune of currency, or track down every single achievement the game has to offer, you have arrived at the perfect destination. We have compiled all the essential strategies, hidden tricks, and step-by-step walkthroughs to help you conquer Gotham City.

This guide provides exactly what you need to elevate your gameplay experience. You will learn how to manipulate Steam settings to force your DualSense controller to work perfectly on Linux, discover a clever button combination to switch characters freely during split-screen cooperative play, and unlock a permanent cache of infinite studs right inside your Batcave. Furthermore, we break down every single achievement into logical categories so you can systematically achieve total completion. Grab your cape, prepare your gadgets, and let us dive directly into the ultimate resource for LEGO® Batman: Legacy of the Dark Knight.

Did You Know? There is a wonderful easter egg honoring the late, legendary Batman voice actor Kevin Conroy. Players found a radio station advertisement in the city that reads “Gotham City Radio After Hours with Conroy, The Voice of Gotham’s Night.”

Table of Contents

1. Mastering the Linux DualSense Setup
2. Liberating Split-Screen Co-Op
3. Unlocking Infinite Batcave Studs
4. The Ultimate Achievement Walkthrough
   • Story Milestones
   • Character Unlocks
   • Exploration and City Activities
   • Batcave Upgrades
   • Combat Mastery
   • Gadgets and Gear
   • Collectibles and Puzzles
   • Miscellaneous Fun
5. Conclusion

Mastering the Linux DualSense Setup

Playing on a Linux machine occasionally presents unique hardware challenges, especially when you want to utilize the advanced features of a PlayStation DualSense controller. By default, the game struggles to activate both rumble and the adaptive triggers simultaneously. However, you can force the game to use both of these features by performing a specific configuration trick within Steam.

Follow these exact steps to optimize your DualSense controller on Linux:

1. Configure Steam Settings: Open Steam, navigate to Settings, and select the Controller tab. Open the Advanced Settings menu and set the PlayStation controller support option to enabled.
2. Adjust Game Properties: Go to your Steam library and right-click on the game. Select Properties from the drop down menu. Navigate to the compatibility options and force the game to use Proton Experimental.
3. Launch the Game: Start the game with the Steam Input option set to Disabled. Make sure you keep the game properties window open on your screen for the next steps. When Steam Input is Disabled, the game turns Adaptive Triggers and Haptic features on, but turns Rumble off.
4. Toggle Steam Input: While the game is running, change the setting in the properties window to Steam Input Enabled. When Steam Input is Enabled, the game turns DualSense features off, but turns Rumble on.
5. Reconnect the Controller: Unplug your DualSense controller entirely, then firmly plug it back into your machine.
6. Finalize the Setup: Switch the setting in the properties window back to Steam Input Disabled.

Performing this quick switcheroo successfully forces the game engine to recognize and utilize both the adaptive triggers and the rumble functions at the same time. Enjoy your fully immersive crime fighting experience!

Trick: Keep in mind that while this method successfully enables both the adaptive triggers and the rumble features, the haptic feedback feature still does not work even after you perform this sequence.

Liberating Split-Screen Co-Op

Couch cooperative play brings a fantastic dynamic to the game, but the default settings unfortunately force player one to remain locked into the role of Batman. If you and your partner want total freedom to play as any character from the expansive roster, you can execute a simple button sequence to break this restriction.

Here is the exact method to switch off of Batman in split-screen co-op mode:

1. Initiate the Sequence: The person who is NOT currently playing as Batman must click the D-Pad down exactly one time.
2. Coordinate the Press: Immediately after clicking, the person who is NOT Batman needs to start holding the D-Pad down. The very moment the first player starts holding their button, the person who IS playing as Batman must press their D-Pad down.
3. Enjoy Total Freedom: Timing this sequence correctly forces the game to transfer the Batman character assignment over to the other player.

Tip: The player who receives the Batman assignment during this sequence instantly gains the freedom to change to any other unlocked character on the roster.

Unlocking Infinite Batcave Studs

Studs serve as the lifeblood of the Lego universe. You need massive amounts of this currency to purchase vehicles, suits, gadgets, and upgrades. Fortunately, the developers hid a brilliant secret within the game that provides you with a permanent, refillable Stud Cache right inside your Batcave.

Follow this simple guide to secure your path to infinite free studs:

1. Access the Extras Menu: Boot up the game and navigate to the main menu. Select the Extras Tab to begin the process.
2. Take the Lego Survey: Within the Extras tab, look for the designated Lego Survey area. Click on it to launch a brief questionnaire.
3. Acquire Your Code: Once you finish the survey, the system will reward you with a unique redemption code. Write this code down or keep it visible on your screen.
4. Redeem the Code: Return to the game menu and navigate to the code redemption selection area. Punch in the exact code you received and confirm your entry.
5. Claim Your Wealth: Congratulations! You just unlocked the path of free studs. Wait a small amount of time, then travel to your Batcave. Look in the Vehicle Selection area. You will notice a brand new Stud Cache waiting for you, marked by a waypoint shaped like a gift or present.

The most exciting part of this trick is the endless replayability. After you loot the cache, you simply need to wait for a short amount of time to pass. The Stud Cache will magically refill itself, allowing you to return to the Batcave and loot it repeatedly for infinite currency.

Tip: Do not stress over the survey questions. The questionnaire simply gauges your interest in Legos, asks basic questions about the game, and takes less than two minutes to complete before handing you the code.

The Ultimate Achievement Walkthrough

Achieving 100% completion in LEGO® Batman: Legacy of the Dark Knight requires dedication, exploration, and combat prowess. We have categorized every single achievement to help you track your progress seamlessly.

Story Milestones

You will unlock the majority of these achievements simply by playing the main campaign. You cannot miss them as long as you keep pushing the narrative forward.

1. “A legend, Mr. Wayne.”: Complete the Prologue. You earn this achievement the moment Bruce discovers the perfect place for the Batcave alongside Alfred.
2. One Bad Day: Complete Chapter One.
3. “Do I look like I’m joking?”: Complete Chapter Two.
4. The Dynamic Duo: Complete Chapter Three.
5. An Endless Winter: Complete Chapter Four.
6. Knightfall: Complete Chapter Five.
7. “A hero can be anyone.”: Complete Story Mode.
8. Beware the Gray Ghost!: Complete Bruce’s Gray Ghost Costume.

Trick: When hunting for the Gray Ghost costume in the gardens, remember to constantly click your right stick to activate your special ability so you can successfully track down each hidden item.

Character Unlocks

Expanding your roster of heroes and villains requires you to complete specific missions scattered throughout the story.

1. A Friend: Unlock Jim Gordon. You must complete the New Beginnings mission to add him to your team.
2. “Hear me roar.”: Unlock Catwoman. Push through the campaign and complete the chapter 2 story missions to recruit her.
3. The Boy Wonder: Unlock Robin. Finish the Two-face story mission to unlock the iconic sidekick.
4. “Let’s see what Batgirl can do!”: Unlock Batgirl. Seek out and complete the very first Batgirl mission to gain access to her character.
5. A Grayson Graduation: Unlock Nightwing. You need to conquer the Mr. Freeze mission to unlock this agile hero.
6. Out of the Shadows: Unlock Talia. Complete the high speed Tumbler Chase mission to add her to your roster.

Tip: Prioritize completing the New Beginnings mission as soon as possible so you can unlock Jim Gordon and utilize his unique skills for other achievements.

Exploration and City Activities

Gotham City offers a massive open world filled with crimes, puzzles, and hidden secrets. You need to thoroughly explore the map to claim these achievements.

1. “This is my city.”: Open your map interface and drop a custom waypoint anywhere.
2. “It’s not exactly a normal world.”: Visit every District. The map contains 9 distinct districts in total. Keep in mind that districts are not the exact same thing as islands. Each island features one or more districts, and you must step foot in all 9 of them.
3. “It’s a big city. I can’t be everywhere.”: Unlock all fast travel points. Open your map and look for icons shaped like shutters. Travel to each location and figure out the unique puzzle attached to it. Solving the puzzle unlocks the fast travel point, allowing you to move freely between districts.
4. “You’re becoming quite a celebrity.”: Discover 100 open world events. Keep exploring the streets and interacting with dynamic situations.
5. “Gotham can feel a little safer.”: Prevent 30 Crimes. Listen closely for the red alert sound.
6. “Things have improved.”: Prevent each type of Crime in Gotham once. As you advance the story, the game introduces a wider variety of crimes. You must successfully stop a Mugging, a Break-in, a Snatch and run, an Ambush, Vandals, a Joyride, and a Scuffle.
7. “Is that like parachuting?”: Glide in 10 different wind tunnels. Launch yourself into the air and find the vertical wind drafts to maintain your altitude.
8. “Hopefully, because he’s busy.”: Complete every side activity in Gotham.
9. “You have a name to maintain.”: Open every WayneTech Cache hidden throughout the city.

Trick: Switch your character to Jim Gordon when you hear the red alert sound. Playing as him helps catch criminals and prevent crimes easier.

Batcave Upgrades

Your secret headquarters requires constant investment and decoration. Spend your hard earned studs to maximize the potential of the Batcave.

1. Rebuilding Gotham: Cash in a Challenge in the Batcave.
2. “I own the place.”: Purchase all Batcave Expansions.
3. “No, sir. The OTHER car.”: Purchase 3 Vehicles directly from the Batcave terminals.
4. Computer Privileges: Interact with the Batcomputer and change the screensaver.
5. Wonderful Toys: Purchase all Gadget Upgrades for any single character. Focus all your resources on maximizing one hero first.
6. “Quite the collection, Master Bruce.”: Collect all Batcave Trophies.
7. Not Just a Cave: Open your decoration menu and place 5 Props or Trophies anywhere in the Batcave.

Tip: Do not forget to interact with the Batcomputer specifically to change your screensaver to secure an incredibly simple achievement.

Combat Mastery

Mastering the combat system demands quick reflexes, high combo strings, and tactical gadget usage.

1. The Strength to Fight: Reach a Combat Combo of 99 hits.
2. “Never do it for free.”: Collect 30,000 Studs within a single combo. Dropping the difficulty to classic drastically helps you maintain the combo long enough to scoop up the required currency.
3. “I’m good with calculation.”: Maintain Max Stud Combo for 60 Seconds. Once your Max Stud Combo meter caps out, keep attacking and collecting studs for one full minute without losing your momentum. Classic difficulty is highly recommended here.
4. “I am the shadows.”: Perform 100 Stealth Takedowns. Sneak up quietly behind an unaware enemy and press your right bumper to take them down silently. Repeat this action 100 times.
5. Caped Defender: Perform 100 Successful Counters. Watch for the enemy attack indicators and press the counter button right before they strike to reverse their momentum.
6. Cowardly and Superstitious Lot: Defeat every type of enemy once. You must take down a Regular enemy, a Shield enemy, a Heavy enemy, a Sword or bat wielding enemy, and a Ranged enemy.

Trick: If you struggle to reach the 99-hit combo, drop the difficulty to classic or equip Jim Gordon and use his second gadget to make the challenge trivially easy.

Gadgets and Gear

Improving your arsenal is vital for taking down Gotham’s toughest villains.

1. “Lighter, faster, more agile.”: Purchase a Skill Upgrade from each available category in the skill tree.
2. Theatricality and Deception: Purchase 3 Gadget Upgrades from the menu.

Tip: Make sure to purchase at least one skill upgrade from every single category first to quickly secure the Lighter, faster, more agile achievement.

Collectibles and Puzzles

True completionists will need to scour every inch of the map to gather every hidden item and unlock every single costume.

1. “Life’s been good to me.”: Collect 1,000,000 Studs. Use the infinite Batcave Stud Cache trick mentioned earlier to achieve this effortlessly.
2. “You either buy a hero…”: Purchase 5 Items from Shops.
3. Up for the Challenge: Complete 20 Challenges.
4. “This is too much power for one person.”: Collect all Red Bricks scattered across the game.
5. “Wouldn’t wanna make things too easy.”: Get 5 Gold Medals in AR Trials. Learn the movement mechanics and optimize your routes to secure the fastest times.
6. Too Many Questions: Complete every single Puzzle Room hidden in the city.
7. “Holy Skill Upgrades, Batman!”: Unlock All Skill Upgrades in the game.
8. “Does it come in black?”: Equip a Red Brick from your extras menu.
9. “The idea was to be a symbol.”: Collect 25 Bat-Symbols.
10. “Wanna know how I got these cars?”: Unlock All Vehicles. You will find them through story progression, purchasing them in the shop, and completing map activities like WayneTech caches.
11. “I’m not wearing hockey pads.”: Unlock All Suits. You need to gather suits from story missions, side missions, Bat Mite’s shop, WayneTech Caches, Escaped Zoo Animals, Plantlife events, Cluemaster Puzzles, Riddler Puzzles, Puzzle Rooms, and AR challenges.
12. A Watchful Collector: Collect all Collectibles. This encompasses Riddler trophies, Cluemaster puzzles, Red bricks, and absolutely everything listed on your pause menu.
13. “I am Batman.”: Collect all Trophies. Unlock every other achievement to claim this final prize.

Tip: Save your time and money by ignoring suits from the deluxe edition, pre-orders, DLC, or linked external accounts, because the game explicitly does not require them for the suit completion achievement.

Miscellaneous Fun

Do not forget to take a break from fighting crime to snap some stylish pictures!

• Collecting Evidence: Roll the camera over 20 degrees in Photo Mode.

Trick: You can access Photo Mode at any given moment simply by pausing the game and selecting the camera option to easily roll the camera and grab your achievement.

Conclusion

Mastering LEGO® Batman: Legacy of the Dark Knight transforms a simple playthrough into a deeply rewarding superhero experience. By forcing your Linux DualSense controller to output both rumble and adaptive triggers, you guarantee maximum tactile immersion. By utilizing the secret D-Pad trick in split-screen, you and your friends can tackle Gotham exactly the way you want. Furthermore, tapping into the infinite Batcave Stud Cache ensures you always possess the funds necessary to purchase every single vehicle, gadget, and skill upgrade available. Stay vigilant, keep your combo meters high, and clean up the streets of Gotham City one Lego brick at a time. Have a spectacular time defending the city!

Fun Fact: Players on the Five Nights at Freddy’s subreddit discovered a surprisingly deep nod to the horror franchise. The game includes animatronic polar bears that heavily resemble Funtime Freddy, and one even recites a direct parody of the classic Fazbear Entertainment legal disclaimer stating they are “not responsible for damage.”