LEGO Batman: Legacy of the Dark Knight Guide: Missions, Challenges, and 100% Cleanup

Official LEGO Batman Legacy of the Dark Knight screenshot showing Batman in front of the moon

LEGO Batman: Legacy of the Dark Knight is easiest to finish cleanly if you separate the game into three jobs: clear the story, unlock every playable character and traversal tool, then come back for mission collectibles, Gotham puzzles, Batcave rewards, challenges, and achievements. The main campaign is not especially punishing, but the open-world cleanup can sprawl if you chase every icon the first time it appears.

This guide is written for players who want a practical route through the Prologue and six numbered chapters, plus a sensible 100% cleanup plan. It covers the mission order, replay priorities, character-gated collectibles, challenge board strategy, achievement cleanup, and the places where public references disagree or group missions differently.

Spoiler warning: this guide names chapters, mission groups, villains, unlock timing, late-game cleanup systems, and several achievement/challenge requirements. It does not include a full coordinate-by-coordinate collectible dump, because the better first pass is to know what to save for replay and what to collect after the full roster is unlocked.

Official LEGO Batman Legacy of the Dark Knight screenshot showing Batman in front of the moon
Finish the story first, then treat Gotham as a checklist. The game gives you much better cleanup tools after the cast and Batcave systems open up.

Quick 100% Route

  1. Play the story normally through the Prologue and Chapters 1 to 6. Do not restart missions just because you miss a collectible on the first visit.
  2. From Chapter 2 onward, check the Batcave challenge board when you return to base. Challenges can be completed earlier, but cashing them in starts once the Batcave board is available.
  3. Buy basic progression upgrades before luxury cosmetics. Stud magnet, combo timer, gadget upgrades, traversal comfort, and combat safety all reduce cleanup friction.
  4. Use mission replay for Red Bricks, trophy pieces, WayneTech chests, and mission-specific destructibles once you have the right character or gadget.
  5. Post-story, clear fast travel and radio/map reveal style activities first. A complete map turns the rest of Gotham from wandering into routing.
  6. Do Riddler, Cluemaster, puzzle rooms, WayneTech caches, Bat-Symbols, wanted posters, lost animals, crimes, AR challenges, and Batcave items in district sweeps rather than one collectible type at a time across the entire city.
  7. Save achievement-specific actions for cleanup unless they naturally happen during story play. Combo, stealth, challenge, photo, vehicle, and Dark Knight Mode tasks are easier when you can choose the mission or district.

What Counts as Completion?

The official Steam listing records 52 achievements for the base game, while WB’s support FAQ describes the game as an open-world action adventure with seven playable characters, 100 suits and outfits, more than 20 vehicles, and more than 250 Batcave items and trophies. Community achievement guides also report that base-game achievements are not permanently missable, but the clean route is still to keep a manual save before the final act and use mission replay for anything you skipped.

Goal What To Know Best Time
Story Public mission-list references agree on a Prologue plus six numbered chapters. Some sources group finale sub-missions differently, so use the table below as a practical replay checklist, not as a menu-name guarantee. First playthrough
Mission collectibles Red Bricks, trophy pieces, and WayneTech chests appear in many replayable story missions. Some are easier or impossible to clean up until later characters and gadgets are available. After full roster
Gotham activities Riddler and Cluemaster puzzles, SubWayne stations, crimes, AR challenges, caches, lost animals, wanted posters, Bat-Symbols, and Batcave objectives all feed into the long cleanup. Post-story district sweeps
Challenges There are 43 challenge-board tasks. Many overlap with normal combat, stealth, traversal, character gadgets, photo mode, and vehicle play. Track from Chapter 2, finish later
Achievements Story achievements unlock naturally, but the longer list asks for full collections, upgrades, challenge progress, crime variety, puzzle rooms, vehicle/suit unlocks, and specific combat or gadget actions. After story and map reveal

Best First-Run Priorities

Do Not 100% Missions on First Entry

Legacy of the Dark Knight follows the classic LEGO logic: early missions show you locked interactions before you have the character or gadget that solves them. If you see a WayneTech chest, alternate route, character-specific switch, or suspicious destructible that clearly wants someone you do not have yet, make a mental note and keep moving. Mission replay exists for this reason.

Unlock the Cast Before Full Cleanup

The playable roster matters because each character owns different tools. Batman’s Batclaw, Robin’s Cable Launcher, Jim Gordon’s Foam Sprayer, Catwoman’s whip, Batgirl’s hacking, Nightwing’s ranged kit, and Talia’s ninja-style tools all appear in cleanup requirements. If you try to clear Gotham too early, you will keep bouncing off gated objectives and wasting travel time.

Spend Toward Movement and Information

Early studs and upgrade materials are tempting to pour into cosmetics, but completion is smoother if you improve the systems that find, reach, or protect rewards. Prioritize useful combat upgrades, gadget upgrades needed for focus abilities, traversal comfort, stud collection help, and Batcave systems. Cosmetics can wait unless they unlock an achievement or a specific challenge.

Use District Sweeps

After the story, pick one district, clear every visible activity there, then move to the next. This is faster than doing all Riddler puzzles citywide, then all caches citywide, then all wanted posters citywide, because every district has overlapping routes across rooftops, alleys, interiors, and nearby fast-travel points.

Official LEGO Batman Legacy of the Dark Knight screenshot showing Batman gliding over Gotham City
Gotham is the real second half of the game. Fast travel and district sweeps matter more than raw story speed.

Story Mission Order

The public references differ in how they label sub-missions. Push Square presents a compact list, Rock Paper Shotgun lists 22 mission groups with collectibles, and Radio Times breaks many of those groups into smaller named beats. The table below merges those references into a player-facing order. Treat the “Collectible focus” column as your replay warning: if a row says “none,” move through it; if it lists Red Bricks, trophy pieces, or WayneTech chests, plan to revisit after the story.

Chapter Mission Group Notable Beats Collectible Focus
Prologue Early Years Wayne Manor Grounds, Falcone Confrontation, early Bruce setup. Usually treated as story-only.
Prologue The League of Shadows Mountain climb, combat training, stealth training, gadget training. Usually treated as story-only.
Prologue Infiltration Glacier Fight, Infiltration, Ra’s al Ghul. 1 Red Brick, 5 trophy pieces, 5 WayneTech chests.
Chapter 1 New Beginnings Returning Home and Docks introduction. 1 Red Brick, 5 trophy pieces.
Chapter 1 Oswald Cobblepot / Tricorner Investigation Open investigation flow around Tricorner. Primarily story progress.
Chapter 1 Riddler / Riddle Me This First major Riddler logic and puzzle introduction. Primarily story progress.
Chapter 1 Carmine Falcone Back to the Iceberg Lounge, Iceberg Lounge set-piece. 1 Red Brick, 5 trophy pieces, 5 WayneTech chests.
Chapter 1 Wayne Industries The SubWayne, Spelunking, A Family Friend, WayneTech R&D, Glider Calibration. Mostly progression and system unlocks.
Chapter 1 The Red Hood Gang Criminal Chemistry, Caught Red Hooded, ACE Chemicals, Factory Meltdown. 1 Red Brick, 5 trophy pieces, 5 WayneTech chests.
Chapter 2 Mimes Home Sweet Home, Disrupted Debate, Shreck’s Department Store. 1 Red Brick, 5 trophy pieces, 5 WayneTech chests.
Chapter 2 The Penguin On the Prowl, Arctic World, Cold Blooded. 1 Red Brick, 5 trophy pieces, 5 WayneTech chests.
Chapter 2 Flugelheim Joker Cards, A Lick of Paint, The Party Man. 1 Red Brick, 5 trophy pieces.
Chapter 2 Joker Party Prep and The Big Dukeroo. 1 Red Brick, 5 trophy pieces, 5 WayneTech chests.
Chapter 3 Two-Face The Heist, Date Knight, Haly’s Circus. 1 Red Brick, 5 trophy pieces.
Chapter 3 Kite Man Dynamic Duo, Fly a Kite, Power Plants. 1 Red Brick, 5 trophy pieces.
Chapter 3 Poison Ivy The Seed of the Crime, Botanical Gardens, The Snapdragon. 1 Red Brick, 5 trophy pieces, 5 WayneTech chests.
Chapter 4 Firefly Pirate Party and Knight at the Museum. 1 Red Brick, 5 trophy pieces, 5 WayneTech chests.
Chapter 4 Batgirl Begins Out of Commission and Batgirl story progression. Usually treated as story-only.
Chapter 4 Mr. Freeze Antifreeze, Tonight’s Forecast, The Ice Man Cometh. 1 Red Brick, 5 trophy pieces.
Chapter 5 Tumbler Chase Clown Chaos, Rough and Tumble. Primarily story and vehicle action.
Chapter 5 Arkham Asylum Seeing Is Believing, A Dog Chasing Cars, A Serious House. Primarily story progress in the public lists checked.
Chapter 6 The League of Shadows Returns A Shadow over Gotham, Bane: Round 2, finale sequence. 1 Red Brick, 5 trophy pieces, 5 WayneTech chests.

Chapter Walkthrough Notes

Prologue

The Prologue is the longest tutorial stretch, but it teaches systems you will use for the entire game: brawling, stealth, gadget prompts, gliding rhythm, and the idea that mission spaces hide collectibles you cannot always finish immediately. The Infiltration group is the first row worth marking for replay because it has a Red Brick, trophy pieces, and WayneTech chests.

Do not overthink the training sections. Learn the counter prompt, practice stealth takedowns, and get comfortable looking above and below the main path. LEGO Batman hides rewards in side alcoves, vertical routes, and destructible clusters more often than in plain hallway corners.

Chapter 1

Chapter 1 is dense because it introduces Gotham, early villains, WayneTech, SubWayne travel, glider systems, and mission replay logic in quick succession. New Beginnings and The Red Hood Gang are the big replay rows, while Carmine Falcone is an early test of remembering mission-specific collectibles. If you want a low-friction run, finish the chapter before cleaning up the Iceberg Lounge or ACE Chemicals.

The Red Hood Gang is also useful for combat and enemy-type practice. Community challenge references point to early brute encounters as good places to learn brute behavior, counters, and gadget setups. That does not mean you need to grind the challenge board here, but it is worth remembering this mission when cleanup asks for specific combat situations.

Chapter 2

Chapter 2 is where the game starts feeling like a full LEGO open-world title. Mimes, The Penguin, Flugelheim, and Joker all have replay value, and the Batcave challenge board becomes relevant. From this point on, cash in completed challenges whenever you return to the Batcave so you do not leave easy studs and board progress sitting unclaimed.

Flugelheim appears smaller on the collectible list than the other Chapter 2 missions because it lacks WayneTech chests in the checked mission-list references. That makes it a good early replay target: grab the Red Brick and trophy pieces, then get out instead of turning every replay into a marathon.

Chapter 3

Chapter 3 adds more ally tools and pushes you through Haly’s Circus, the Power Plants, and the Botanical Gardens. This is the point where character-gated puzzles become more noticeable. If an objective clearly expects Robin, Nightwing, Catwoman, Jim Gordon, or another ally, wait until the story has handed you the right tool instead of forcing it.

Poison Ivy is the most collectible-heavy Chapter 3 replay target because it includes a Red Brick, trophy pieces, and WayneTech chests. Two-Face and Kite Man still matter, but their checked collectible load is lighter.

Chapter 4

Firefly and Mr. Freeze are the important replay rows in Chapter 4. Firefly has the full Red Brick, trophy, and WayneTech chest package; Mr. Freeze is more focused on Red Brick and trophy cleanup. Batgirl Begins is important for roster and story progression even if it is not one of the major collectible rows in the lists checked.

Once Batgirl is available, revisit hacking and tech-gated objectives you skipped earlier. This is also a good time to stop trying to solve every city puzzle immediately and start tracking which districts are blocked by roster tools versus which are simply unsolved.

Chapter 5

Chapter 5 is shorter on the checklist but heavier on set-pieces: Tumbler Chase and Arkham Asylum. Use it to become comfortable with vehicle handling and high-pressure combat, then keep the detailed cleanup for after Chapter 6. If you are achievement-hunting, vehicle boost, chase comfort, and no-damage combat practice can be handled later in easier open-world routes or mission replay.

Official LEGO Batman Legacy of the Dark Knight screenshot showing a Batmobile in the rain
Vehicle challenges are easier when you choose the route. Save the serious vehicle cleanup until you have reliable roads and fast travel unlocked.

Chapter 6

The League of Shadows Returns is the final major replay row in the checked mission lists, with a Red Brick, trophy pieces, and WayneTech chests. Some public lists display The Dark Knight Returns as a separate finale beat while others fold it into the Chapter 6 end sequence. Either way, keep a save before the finale if you like having a clean pre-endgame checkpoint.

After the credits, switch from story mode to city management: reveal transport points, finish the Batcave checklist, then clear district activities. This is when LEGO Batman becomes less about beating villains and more about routing a giant checklist without losing your patience.

Mission Replay Priorities

If you only want the shortest replay list, start with missions that contain all three major collectible types. These are the rows most likely to require a proper second pass:

Replay Priority Missions Why They Matter
High Infiltration, Carmine Falcone, The Red Hood Gang, Mimes, The Penguin, Joker, Poison Ivy, Firefly, The League of Shadows Returns These are listed with Red Brick, trophy pieces, and WayneTech chests. Expect the longest cleanup visits here.
Medium New Beginnings, Flugelheim, Two-Face, Kite Man, Mr. Freeze These are listed with Red Brick and trophy pieces but no WayneTech chest group in the checked mission-list references.
Low Early Years, The League of Shadows, Oswald Cobblepot, Riddler, Wayne Industries, Batgirl Begins, Tumbler Chase, Arkham Asylum These are mainly story, tutorial, traversal, vehicle, or progression beats in the public lists checked. Replay only when an achievement or missed objective points you back there.

Open-World Cleanup Order

Once the story is done, the best cleanup order is about reducing repeat travel. Start with systems that reveal movement, then clear district puzzles and collectibles, then finish skill checks and achievements.

  1. Fast travel and district reveal: unlock all SubWayne stations and map-facing infrastructure first. Community references identify 9 SubWayne station solutions, and the achievement guide cross-checks 9 quick-travel locations.
  2. WayneTech caches and upgrade chips: these feed gadget upgrades, and gadget upgrades feed challenges and achievements. Do not leave them for the end.
  3. Riddler and Cluemaster puzzles: finish the story first, because several puzzle rooms and late-region objectives depend on character tools or staged unlocks.
  4. Puzzle rooms: community guides warn that puzzle rooms unlock in waves as puzzle progress rises. If a room is locked, clear more Riddler or Cluemaster entries instead of assuming you missed a switch.
  5. Bat-Symbols and hidden collectibles: Bat-Symbols are unmarked enough that they deserve a dedicated sweep. Use rooftops, towers, ledges, signs, and landmark edges as your search pattern.
  6. AR challenges and crimes: complete every AR challenge for checklist purposes, then pick the easiest 5 to gold if you only need the gold-medal achievement requirement reported by community guides.
  7. Batcave items, suits, vehicles, and trophies: buy and place items after you have income, unlocks, and enough reason to visit the Batcave repeatedly.
  8. Specific achievements: clean up counter counts, stealth takedowns, combo streaks, photo mode, Dark Knight Mode, gadget-focus tasks, vehicle boost, and character-specific challenge actions last.

Riddler, Cluemaster, and Puzzle Rooms

Do not make Riddler and Cluemaster puzzles your first open-world obsession. Steam Community puzzle references list large regional sets, including Riddler routes across Tricorner, Old Gotham South, The Cauldron, Old Gotham North, Gotham Village, Newtown, East End Amusement Mile, and Old Gotham West, plus Cluemaster routes across many of the same districts. Those guides also warn that some puzzle rooms unlock only after enough puzzle progress.

The important practical rule is simple: finish the story, then clear puzzles by district in roughly natural city order. If a puzzle room is unavailable, move to another district and build total puzzle completion. When the game opens the next room, return through fast travel instead of circling the same door.

Puzzle Type Cleanup Advice Common Mistake
Riddler puzzles Clear them after the full roster is available, then use puzzle-room unlock messages as routing cues. Trying to brute-force late puzzle rooms before the unlock threshold.
Cluemaster puzzles Do them in district batches; several community route guides recommend a fixed district order to avoid locked-room backtracking. Assuming every Cluemaster marker is solvable the moment it appears.
Puzzle rooms Treat them as milestone rewards for puzzle progress, not as ordinary map icons. Skipping Riddler/Cluemaster puzzles, then wondering why the final rooms are locked.

Challenge Board Strategy

There are 43 challenges in the checked challenge guide, and they are not all equal. Some are nearly free, some are character-specific, and some ask for a specific enemy type or gadget upgrade. The smart route is to divide them into “natural,” “setup,” and “late cleanup” tasks.

Natural Challenges

Natural challenges are the ones you can finish while playing normally: counters, stealth takedowns, defeating enemies, using Batarangs to distract guards, gliding, vehicle boosting, smashing objects, visiting notable landmarks, and using common gadgets. Track them, but do not stop the story to grind them unless you enjoy it.

Setup Challenges

Setup challenges need the right mission or character. Examples from the checked challenge references include using Robin’s Cable Launcher with brute enemies, Nightwing’s Rebound Bolt or Electric Birdarang, Jim Gordon’s Foam Sprayer, Catwoman’s whip, Batgirl’s quick hacks, and Talia’s tools. These become much easier once you can choose a combat encounter and character on purpose.

Late Cleanup Challenges

Late challenges include Dark Knight Mode enemy counts, long combo streaks, focus-upgrade tasks, gadget-focus usage, and any objective that requires specific upgrades. Save these until your skill trees and gadget workbench are built out. You will spend less time fighting the rules and more time actually completing the task.

Official LEGO Batman Legacy of the Dark Knight screenshot showing Batman riding a Batcycle through Gotham
Many challenge-board tasks are easier in free roam than during story pressure. Pick the encounter, then do the trick.

Achievement Cleanup Roadmap

The clean achievement route is story first, city second, gimmicks third. Community achievement references break the list into story unlocks, near-automatic progression achievements, specific but easy tasks, and long completion goals. That structure is useful even if individual achievement wording changes after patches.

Phase What To Finish Notes
Story clear All chapter completions, core character unlocks, basic combat and stealth progression. Do not worry if the achievement list still looks huge after the credits. Most of the long work is city cleanup.
Batcave setup Challenge board, Batcomputer replay, Batcave expansions, props, vehicle console, gadget workbench. Use the Batcomputer for mission replay and the challenge board to cash in completed tasks.
Collectibles Red Bricks, suits, vehicles, WayneTech caches, Batcave trophies, skill bricks, puzzle rooms, and Bat-Symbols. Some achievement references separate Bat-Symbols from the broader “all collectibles” framing, so track them independently.
Open-world activity Crimes, AR challenges, quick travel locations, puzzle chains, map discoveries, district events. For crime variety, pay attention to the dispatch type. Repeating the same easy crime will not necessarily finish every requirement.
Specific actions Combo streaks, stealth chains, counters, photo mode, Dark Knight Mode kills, focus abilities, gadget-specific tricks. Use early missions, rooftops, or combat challenges where the enemy mix matches the requirement.

Common Mistakes

Trying To Clear Riddler Rooms Too Early

If a puzzle room is locked, it may be gated by total puzzle progress, not by a secret nearby lever. Move on, clear more Riddler or Cluemaster puzzles, and come back when the game opens the next room.

Ignoring WayneTech Caches

WayneTech chips are tied to gadget upgrades, and gadget upgrades are tied to both traversal and achievements. If you leave every cache for the end, you also delay the tools that make the endgame less awkward.

Using One Character for Everything

Batman is the center of the game, but the cleanup is built around the team. If a challenge asks for a whip, cable, foam, hack, birdarang, or ninja movement, swap to the character who owns that tool instead of trying to fake it.

Chasing Every Bat-Symbol Casually

Bat-Symbols are a dedicated search task. They often sit around rooftops, signs, ledges, towers, water edges, and landmark architecture. If you casually grab them during story play, keep a district note so you know where your serious sweep still needs work.

Leaving Challenge Cash-In Until the End

Completed challenges do not help much if you never return to the board. From Chapter 2 onward, make Batcave visits part of your routine: cash in challenge progress, spend upgrades, check mission replay, then go back to Gotham.

Step Checklist Stop When…
1 Finish Prologue through Chapter 6. Credits roll and full story roster is available.
2 Visit the Batcave, cash challenges, check replay, buy practical upgrades. You know which systems still need resources.
3 Unlock SubWayne/fast travel and district map infrastructure. Every major district is easy to revisit.
4 Replay high-priority collectible missions. All Red Bricks, trophy pieces, and WayneTech chests in those missions are cleared.
5 Clear Riddler and Cluemaster puzzles by district. Puzzle rooms stop being locked and the final puzzle chain opens.
6 Finish puzzle rooms, Bat-Symbols, wanted posters, animals, caches, crimes, AR challenges, and Batcave items. The map and Batcave counters stop showing gaps.
7 Complete remaining challenge-board and achievement actions. Only patch/DLC-specific goals remain, if any.

DLC and Version Notes

The official WB FAQ lists the Standard Edition as available on PlayStation 5, Xbox Series X|S, and PC via Steam and Epic Games Store, with Nintendo Switch 2 planned for September 18, 2026. It also lists Deluxe Edition content and the Mayhem Collection as separate post-launch content arriving September 18, 2026. This guide is focused on the base-game story and completion route, not DLC achievement assumptions.

If a future patch changes counts, use the in-game counters as final authority. The counts in this guide reflect the readable references captured for this article: official Steam metadata for the 52-achievement total, official WB/Steam pages for roster and platform facts, and community guide references for cleanup strategy.

Official LEGO Batman Legacy of the Dark Knight screenshot showing Batman facing a large enemy indoors
Bosses and brutes are useful cleanup targets. Revisit controlled encounters when a challenge asks for a specific enemy type.

Sources and Credits

Official game information and screenshots were checked against the Steam store page, Steam app data, the official LEGO Batman game site, and the WB Games support FAQ. Mission, challenge, achievement, and collectible planning was cross-checked against readable guide and community references saved during article preparation.