When the Penguin chose to change his focus from criminal to criminal broker, he established the Iceberg Lounge as his base of operations. Ostensibly a posh nightclub, the Iceberg Lounge catered to Gotham City's hip and wealthy social set.
Cobblepot served as host and booked numerous singers and musicians to perform as well as employing beauties to run the club for him in his absence. Behind the scenes, though, the Penguin still ran his criminal enterprises, laundered stolen cash, and traded on information.
Arkham Origins Incident
Between Arkham Origins and Arkham Asylum Incident
The Penguin decided against building the Lounge and decided to buy an already completed building. When the Cyrus Pinkney Museum of Natural History went up for auction, Cobblepot bought it. He refurbished it the museum into The Iceberg Lounge. He added a pool for his pet shark, Tiny, a torture room, a gladiator pit, and a casino. He also stumbled upon a secret basement that held Solomon Grundy.
Assault on Arkham Incident
Penguin was approached by Amanda Waller to let a group of covert operatives stay at his establishment and to provide them with the weapons and means to break into Arkham Asylum. Oswald agreed to these terms in exchange for a massive pay day in advance. The Suicide Squad arrived at the Lounge and Penguin greeted them all, especially Deadshot, calling him the best assassin he has ever seen. When he saw Harley Quinn, he pulled out his umbrella ready to kill her for stealing a truck of cigarettes with Joker and driving it into the river. Deadshot defused the situation, saying that killing her would be bad business. Oswald realized the assassin was right and let her live, on the condition that Waller never call him again.
Arkham Asylum Incident
Before Arkham City Incident
When the Old Gotham district was set for foreclosure for the upcoming Arkham City project, the Penguin refused to vacate the premises. As construction on the massive wall enclosing the district continued, Penguin was asked several times by City Hall to leave. As the wall was nearly finished, Mayor Quincy Sharp decided to give Penguin one last chance. Sharp gave the police the go ahead to forcefully remove the midget gangster and his cronies. Cobblepot responded with massive gunfire, killing three veteran officers. Sharp decided to finish the wall and leave the midget to his own devices.
Arkham City Incident
Penguin used the Iceberg Lounge as his base of operations for the Arkham Gang War. He plotted on taking out Joker and Two-Face and ruling Arkham City with an iron fist. To hurt The Joker, he had Mr. Freeze, who was working as Joker's doctor, kidnapped and taken to the Lounge. Commissioner Gordon sent in police officers to investigate Penguin's activities. Hugo Strange informed the Penguin about the officers and this led to Oswald to decide to torture and kill these cops.
When Batman infiltrated Arkham City in order to investigate Strange's activities, he came across Penguin's Henchmen. Batman decided to go to the Lounge, save the police, Freeze, and stop Cobblepot. He succeeded saving them one by one. As Batman went deeper into the Lounge, the Penguin revealed a trump card, Mr. Freeze's cold gun. Penguin froze the officers and hid them around his museum. He then sealed himself in the VIP area of the Lounge. After saving everyone, Mr. Freeze told Batman how to temporarily disarm the freeze ray. Batman took the disruptor and headed toward the VIP area. He found Penguin standing on top of a table with the gun and a hostage. After fighting his way to the gangster, Batman activated the disruptor. He then punched Cobblepot and threw him into a table. While the Penguin pled for his life, he pulled out a detonator. This destroyed the floor Batman was standing on and dropped him into Grundy's lair. The Bat fought the immortal zombie and eventually defeated him. This battle allowed Penguin to get his grenade launcher and fire at Batman. Batman went up to his enemy, beat him up, and placed him in a cage.
Later that night, Two-Face infiltrated the museum section of the Lounge and claimed it as his territory. Catwoman, whom he recently tried to have killed, broke into the museum, attacked many of Dent's men, and took out the boss herself.
The undercover police officers sealed the doors and sought refuge in the VIP area after the defeat of the Penguin. Batman returned to them to take a device from Officer Elvis Jones, which helped him detonate mines.
After Arkham City Incident
The building was presumably shut down after the Arkham City Incident.
Arkham Knight Incident
City Hall decided to reintegrate Arkham City back into the Gotham City limits, the Iceberg Lounge included. It was possibly put up for auction once more.
- If you visited the Iceberg Lounge after you beat Penguin and Solomon Grundy, and used Detective Mode, you would find an outline of Grundy underneath the floor that would say: "Unknown."
- The unwritten Number 1 rule of the Iceberg Lounge is "No one wins except the owner."
- One of the most enforced rules of the Lounge is "No clowns allowed."