LEGO Batman: Legacy of the Dark Knight Guide: The Complete Achievement Walkthrough
Your ultimate roadmap to sweeping Gotham's streets, maxing out your gear, and unlocking that elusive Platinum trophy without losing your mind.
Quick Answer: Locking down the Platinum in Gotham City means finishing the campaign first, leaning on Batgirl to reveal map icons, and ignoring the open-world cleanup until your character roster is fully stacked. Do not panic about missing anything, because every single story level is completely replayable from the Batcave.
The Platinum Roadmap
Grinding out all 52 achievements in LEGO Batman: Legacy of the Dark Knight is a massive undertaking that pulls you into every grimy corner of Gotham’s nine districts. You are looking at a massive checklist of story missions, tedious puzzles, and an obscene amount of property damage.
The best news is that the developers threw completionists a bone. There are absolutely zero missable achievements. If you blitz through a level and forget a hidden collectible, you can simply load up the Batcomputer at your base and jump right back in. To save your sanity, ignore the open-world distractions entirely until you finish Chapter 6. Having the complete character roster unlocked makes grabbing hidden items infinitely easier.
Story and Roster Unlocks
These milestones hit your account naturally just by progressing through the main narrative and recruiting your Bat-Family allies.
| Achievement | What You Need To Do |
| Beware the Gray Ghost! | Track down every Gray Ghost item in the garden during the Prologue. |
| “A legend, Mr. Wayne.” | Beat the opening Infiltration mission. |
| A Friend | Finish “New Beginnings” to get Jim Gordon on the team. |
| One Bad Day | Wrap up Chapter 1 by completing “The Red Hood Gang.” |
| “Hear me roar.” | Beat the Chapter 2 “Mimes” mission to unlock Catwoman. |
| “Do I look like I’m joking?” | Clear the main Joker mission in Chapter 2. |
| The Boy Wonder | Finish Chapter 3’s “Two-Face” stage to recruit Robin. |
| The Dynamic Duo | Beat “Poison Ivy” to wrap up Chapter 3 entirely. |
| “Let’s see what Batgirl can do!” | Finish the “Batgirl Begins” level in Chapter 4. |
| A Grayson Graduation | Get Nightwing on the squad during the “Mr. Freeze” mission. |
| An Endless Winter | Complete Chapter 4 by taking down Mr. Freeze. |
| Out of the Shadows | Unlock Talia during the “Tumbler Chase” in Chapter 5. |
| Knightfall | Finish up Chapter 5 by beating the “Arkham Asylum” stage. |
| “A Hero Can Be Anyone.” | Roll the credits by beating Chapter 6. |
Mastering Gotham’s Streets
Once the story wraps, the real busywork begins. Cleaning up the open world requires dedication, a lot of brawling, and a solid exploration strategy.
Brawling Like a Billionaire
Batman might have a strict rule against killing, but hitting a street thug 99 times in a row definitely puts them in the hospital. Do not just blindly mash the attack button to build your combo, or you will get hit and lose your streak.
- The Strength To Fight: Stun massive groups of enemies with your Batarangs first, then safely punch your way to a 99-hit combo.
- Caped Defender: Pull off 100 successful combat counters.
- “I am the shadows.” Sneak up and execute 100 stealth takedowns.
- Cowardly and Superstitious Lot: Beat up at least one of every enemy variant. You will honestly get this naturally by finishing the story.
Clearing the Map
When you start sweeping the map, swap to Batgirl immediately. Her Hackarang is the absolute best tool for unlocking district Towers, which instantly populates your map with the icons you need. Also, whenever you hear the police dispatch radio call out a random crime, drop everything and handle it.
| Achievement | What You Need To Do |
| “This is my city.” | Drop a custom waypoint pin on your map. |
| “It’s not exactly a normal world.” | Physically step foot into all 9 Gotham districts. |
| “Gotham can feel a little safer.” | Shut down 30 random dispatch crimes. |
| “Things have improved.” | Stop every distinct type of crime at least once. |
| “Wouldn’t wanna make things too easy.” | Score 5 gold medals in the open-world AR trials. |
| “You’re becoming quite the celebrity.” | Finish 100 open-world events. |
| “Is that like parachuting?” | Glide all the way through 10 unique wind tunnels. |
| “It’s a big city. I can’t be everywhere.” | Unlock all SubWayne fast travel spots by solving the shutter puzzles. |
| Collecting Evidence | Boot up Photo Mode and tilt the camera past 20 degrees. |
| Computer Privileges | Change the screensaver on the Batcave’s main computer. |
| Up for the Challenge | Knock out 20 tasks from the Batcave Challenge Board. |
| “Hopefully because he’s busy.” | 100% the side content, including all races, missions, and puzzles. |
Breaking the Bank
You would think a billionaire could fund his own crusade, but you are the one left punching trash cans to afford upgrades. You have to hoard over a million studs, buy out the Bat-Mite Store, and max out your gear.
If you try doing this legitimately, you will be grinding until your controller breaks. Do yourself a favor and check out our ultimate guide on unlocking unlimited studs instantly to bypass the busywork entirely.
When you start upgrading, pool all your resources into a single character first. Maxing out Batman’s Batclaw entirely before spending points on anyone else guarantees you unlock the “Wonderful Toys” achievement as early as possible.
- “Life’s been good to me.” Hoard a total of 1,000,000 Studs.
- Never Do It For Free: Snag 30,000 Studs in one combo. Grab an x3 multiplier and hunt down a Purple Stud.
- “I’m good with calculation.” Keep your Stud Combo maxed out at x3 for a full minute.
- “Lighter, faster, more agile.” Buy one Combat skill and one Exploration skill.
- “Holy skill upgrades, Batman” Purchase every single skill upgrade on the tree.
- Rebuilding Gotham: Turn in a completed challenge for cash inside the Batcave.
- Not Just A Cave: Decorate your base by placing 5 props on the build plates.
- “I own the place.” Buy all Batcave expansions using the diggers parked around the base.
- “No, Sir. The OTHER car.” Buy 3 vehicles from the garage terminal.
- “Wanna know how I got these cars?” Unlock all the vehicles.
- “You either buy a hero…” Buy 5 items from Bat-Mite.
- “I’m not wearing hockey pads.” Unlock every suit in the game.
- Theatricality and Deception. Buy 3 Gadget Upgrades.
- Wonderful Toys: Completely max out all gadget upgrades for a single hero.
The Ultimate Scavenger Hunt
The final stretch is a brutal collect-a-thon. The Riddler and Cluemaster apparently formed an alliance just to annoy you, leaving behind 61 separate puzzle rooms. Grab a coffee, because clearing this board takes patience.
| Achievement | What You Need To Do |
| “Does it come in black?” | Equip any unlocked Red Brick color swap to your character. |
| “You have a name to maintain.” | Crack open all 200+ WayneTech Caches. |
| “The idea was to be a symbol” | Grab all 25 Bat-Symbol coins hidden in the city. |
| “Quite the collection, Master Bruce.” | Find all the hidden trophies across the game. |
| Too Many Questions | Beat all 31 Riddler and 30 Cluemaster Puzzle Rooms. |
| “This is too much power for one person.” | Track down and buy all 23 Red Bricks. |
| A Watchful Collector | Scrub the map clean of every single collectible icon. |
| “I am Batman.” | Unlock all 51 previous achievements to secure the Platinum. |
