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Batman: Arkham Knight: Batman: Arkham Knight 100% Completion Guide

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The defence of the GCPD and the last night

Save the Clock Tower servers, hold the GCPD, clear the last towers and mines, then play the final main mission.

The Riddler is locked up and you start at the GCPD with every gadget the route uses and the Batmobile. This stretch saves the Clock Tower servers, picks up the final Most Wanted mission, and holds the GCPD against the militia's biggest attack. That attack releases the last towers and mines, so the militia's last commander falls before you start the final main mission. With every Most Wanted mission done here, the next section can start Knightfall once. The last trophies wait for that section.

Stop Scarecrow's men destroying Oracle's serversQuest step
Location
Bleake Island · Chinatown – Leave the GCPD and park short of the Clock Tower, because two snipers watch it from nearby roofs: drop them first. Then clear the soldiers around the tower, taking the Medic early and the Minigunner last, and download the Boa Drone's codes if you want it on your side. Go inside, climb to the third floor and shut down the marked computer.
Requires
Summary
The militia have overrun the Clock Tower. Saving the servers opens Lamb to the Slaughter, the final Most Wanted mission to appear.
Sources
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Lamb to the Slaughter: Lady of GothamHidden spoiler – activate to revealQuest stepMinor spoiler
Location
Bleake Island · Lady of Gotham – A radio call at the Clock Tower starts this: pick it on the mission wheel and glide to the Lady of Gotham islet, which has no road. Sabotage the two weapon crates with the Disruptor before you drop in, then beat all 25 cultists, staying clear of the electrified fences. Use the Remote Electrical Charge on the four generators below the platform, grapnel up to the hatch, then take Deacon Blackfire and Ryder to the GCPD for the trophy.
Requires
Summary
The final Most Wanted mission to appear, and one of the 14 the full ending needs. A cult holds Jack Ryder on the statue's islet, and you have three minutes once you land.
Trophies
  • Achievement · SteamThe Cult
  • Achievement · XboxThe Cult
  • Bronze · PlayStationThe Cult
Sources
Report an issue
Defend GCPD: parking lotQuest step
Location
Bleake Island · GCPD – Pick the City of Fear main mission on the wheel, then at the GCPD speak to the marked ally inside the precinct. Back in the car park, APCs unload a crowd: jump in the Batmobile and shoot them down, and chase any who get into the holding cells. Winch the anchor on the ventilation fan near the ceiling, grapnel through the gap, and follow the vents and lift shaft to the roof, where the main generator cannot be saved.
Requires
Summary
The militia reach the GCPD. Clearing the car park and climbing out through the vents starts the long fight for the building.
Sources
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Defend GCPD: backup generatorsQuest step
Location
Bleake Island · GCPD – Stand at the roof's edge above the car park entrance and blind the Dragon Drone outside it with the Remote Hacking Device. While it is blind, drop down and squeeze under the gate, which is stuck part way. Down the ramp, beat the 14 Soldiers and the shield Brute, then hit each of the three wall generators beside the locked gate with the Remote Electrical Charge.
Requires
Summary
Three backup generators in the car park are the only way to get the Batmobile back out of the locked-down building.
Sources
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Defend GCPD: tank battleQuest step
Location
Bleake Island · GCPD – Spend any spare WayneTech points on the Batmobile before you drive out of the car park exit. Shoot the targets your ally marks, which set off explosions and EMP blasts, and fire the Level 4 Missile Barrage whenever it charges. If you are swamped, break the weak wall beside the car park entrance and reverse down the waterfront road, so the drones must come through that gap a few at a time.
Requires
Summary
The biggest tank battle in the game: about 62 machines, with no way to repair the Batmobile.
Sources
Report an issue
Defend GCPD: rooftopQuest step
Location
Bleake Island · GCPD – When the last drone falls, a call sends you to the roof. Wave one is Soldiers and a stun-stick Brute; a helicopter then brings a Medic and five Combat Experts, so drop the Medic at once. After a scene and a checkpoint, the third wave brings two Medics, more Soldiers and two Brutes: take the Medics first and use environment takedowns on the Brutes. Be Not Afraid unlocks when that wave is down.
Requires
Summary
Three waves on the roof end the siege. The militia's last towers and mines appear once it is over.
Trophies
  • Achievement · SteamBe Not Afraid
  • Achievement · XboxBe Not Afraid
  • Bronze · PlayStationBe Not Afraid
Sources
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Occupy Gotham: by the gas station near the GCPDQuest step
Location
Bleake Island · The Cauldron – From the GCPD roof, glide to the building beside the gas station (2132, 2615); the tower is on a roof halfway up it. Blind the Sentry Gun with the Remote Hacking Device before you drop in, and grapnel out to blind it again if it recovers. Beat the group, Brutes last, then gel the console.
Requires
Summary
One of the last four militia watchtowers in Occupy Gotham, which the full ending needs. They appear only after the GCPD siege.
Sources
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Campaign for Disarmament: dry canalQuest step
Location
Bleake Island · Chinatown – Call the Batmobile and drive into the dry canal between Panessa Studios and Chinatown (1926, 2682). Buy Batmobile armour first if you can: this is a 48-drone wave, among the hardest in the game. Winch the mine to upload the virus, destroy the wave, then winch again and hold the revs in the orange.
Requires
Summary
One of the last three mines in Campaign for Disarmament, which the full ending needs. They appear only after the GCPD siege.
Sources
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Occupy Gotham: a block from Mercy BridgeQuest step
Location
Bleake Island · The Cauldron – Head for Mercy Bridge and stop on the roof of the building a block before it (2195, 2779). Blind the Sentry Gun before you set foot there. It plays like a small predator room: a Minigunner, a Boa Drone and four Soldiers, two of them hidden from Detective Mode. Clear them and gel the console.
Requires
Summary
One of the last four militia watchtowers in Occupy Gotham, which the full ending needs. They appear only after the GCPD siege.
Sources
Report an issue
Campaign for Disarmament: Kingston broken bridge roadQuest step
Location
Miagani Island · Kingston – Cross Mercy Bridge into Kingston and drive to the Bank of Gotham end of the island. The mine is under the road that leads to the broken bridge (3054, 2931). Winch it, beat the 36 drones, then winch again and hold the revs in the orange.
Requires
Summary
One of the last three mines in Campaign for Disarmament, which the full ending needs. They appear only after the GCPD siege.
Sources
Report an issue
Occupy Gotham: Botanical Gardens towerQuest step
Location
Miagani Island · Bristol – Drive up to the Botanical Gardens in Bristol and climb the red Eiffel-style tower beside them (3251, 2170). Six armed Soldiers and a Boa Drone patrol its upper levels, so use the hatches and overhead cables to take them one by one. Then gel the console.
Requires
Summary
One of the last four militia watchtowers in Occupy Gotham, which the full ending needs. They appear only after the GCPD siege.
Sources
Report an issue
Occupy Gotham: by the HQ south entranceQuest step
Location
Founders' Island · Ryker Heights – Cross to Founders' and find the building under construction across the road from the Gotham Stock Exchange, by the Arkham Knight HQ south entrance (2407, 1648). Take the two Medics first, then the two camouflaged Soldiers, then the four Minigunners one at a time, and gel the console. If you left the Otisburg tower (2612, 1387) marked, clear it on the way to Port Adams: the trophy comes with the 21st tower, wherever that is.
Requires
Summary
The last new watchtower, and the hardest predator fight of the 21. Gates of Gotham unlocks when all 21 are down.
Trophies
  • Achievement · SteamGates of Gotham
  • Achievement · XboxGates of Gotham
  • Bronze · PlayStationGates of Gotham
Sources
Report an issue
Campaign for Disarmament: Port Adams gateQuest step
Location
Founders' Island · Port Adams – Drive to the entrance of Port Adams; the mine is just inside the gate (2945, 1450). Winch it and face 40 mixed drones: destroy the Mambas and Dragons first so you can deal with the ground tanks in peace. Winch again and hold the revs in the orange.
Requires
Summary
The last of the 14 mines. Gotham Underground unlocks here, though the mission itself still has one step to go.
Trophies
  • Achievement · SteamGotham Underground
  • Achievement · XboxGotham Underground
  • Bronze · PlayStationGotham Underground
Sources
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Deathstroke's tankHidden spoiler – activate to revealBossMinor spoiler
Location
Miagani Island · Grand Avenue – A radio challenge calls you to Grand Avenue on Miagani. The bridges rise when you reach the marker and stay up until the fight ends. Ignore his tank at first: it sees all around it, so stay out of its sight and kill his five Cobras from behind. Then circle him and hit the tank with the 60mm Cannon, using the Vulcan Gun on his missiles.
Requires
Summary
The militia's senior commander, fought in tanks. He waits until the mines, towers, checkpoints and APCs are all finished.
Sources
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Campaign for Disarmament: lock up DeathstrokeHidden spoiler – activate to revealQuest stepMinor spoiler
Location
Bleake Island · GCPD – After the scene, Deathstroke is loaded into the Batmobile. Drive back to the GCPD on Bleake Island and park in the marked spot.
Requires
Summary
Ends Campaign for Disarmament, one of the 14 Most Wanted missions, and earns Dark Allegiances.
Trophies
  • Achievement · SteamDark Allegiances
  • Achievement · XboxDark Allegiances
  • Bronze · PlayStationDark Allegiances
Sources
Report an issue
Free roam returns after the story

The final main mission starts at Panessa Studios, and from the Gotham Storage Depot it runs straight to the credits. The game then hands the city back and nothing is lost: missions, Riddler challenges and trophies all stay open. Keep the difficulty on Normal or Hard until the credits, the safe reading for opening New Story+.

Check Scarecrow's activity at Panessa StudiosQuest step
Location
Panessa Studios · Quarantine Cells – Pick the City of Fear main mission on the wheel and go to the Panessa roof door, then take the elevator down as before. Enter the quarantine zone, walk to the marked cell and listen to the message that comes through.
Requires
Summary
The start of Ending the Nightmare, the last main mission.
Sources
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Answer Scarecrow at the Gotham Storage DepotHidden spoiler – activate to revealQuest stepMinor spoiler
Location
Miagani Island · Kingston – Leave the studio, wait for the radio call, then go to the marker under Mercy Bridge in Kingston and enter the Gotham Storage Depot. Listen at the wall of screens and leave your utility belt on the table below them. Then use the door on the right and get into the truck.
Requires
Summary
Scarecrow's last demand, and the end of your time in the city until the credits.
Sources
Report an issue
Scarecrow finale: the last nightmareHidden spoiler – activate to revealBossMinor spoiler
Location
Miagani Island · Gotham Storage Depot and beyond – In the alley, climb the dumpster, hop the fence on the left, try both doors and check the bodies, then fight and use the Joker Takedown prompt until a scene starts. In the car, fire until the Level 4 Missile Barrage is ready and use it, then go through the door and shoot the three figures along the corridor. Follow the flashlight rooms, talking to the woman you meet and breaking every statue and chair in your way, then break the weak wall, pull the lever, and in the last fight knock your opponent to the hanging cell for an environment takedown. If a marker then points to the GCPD, follow it.
Requires
Summary
The closing stretch of the main story. Finishing it earns Master of Fear and opens New Story+.
Trophies
  • Achievement · SteamMaster of Fear
  • Achievement · XboxMaster of Fear
  • Bronze · PlayStationMaster of Fear
Sources
Report an issue

About this guide

Two playthroughs. Run 1 on Normal or Hard does the story, every Most Wanted mission, Season of Infamy, all 243 Riddler challenges and the Knightfall Protocol, with free roam still open afterwards. Run 2 is New Story+, played on Knightmare, for the main missions and Blunt Trauma. The Arkham Episodes, A Matter of Family and the AR challenges come last.

Last verified: Nov 5, 2026 · Patch PS4, Xbox One and Steam, latest patch, with all DLC · 0 community corrections shipped

Unofficial fan guide. Not affiliated with the publisher.