Arkhamverse

Arkhamverse is a fan-originated term for the shared continuity of the video games  Batman: Arkham Asylum, Batman: Arkham City, Batman: Arkham City Lockdown, Batman: Arkham Origins, Batman: Arkham Origins Blackgate , Batman: Arkham Knight, Batman: Assault on Arkham , Cold, Cold Heart , Harley Quinn's Revenge , Initiation   and a number of tie-in comics.

Known characters
All characters in the Arkham games

Joker

Batman

Scarecrow

Robin

Organizations

 * Sionis Industries
 * Ferris Aircraft (Mentioned only)
 * Queen Industries  (Mentioned only)
 * Wayne Enterprises
 * LexCorp (Mentioned only)
 * GothCorp
 * Stagg Enterprises

Arkham Island

 * Arkham Asylum
 * Intensive Treatment Center
 * Arkham Mansion
 * Botanical Gardens
 * Caves
 * Medical Facility
 * Penitentiary

Park Row

 * Church/Medical Center
 * Ace Chemicals Building
 * Solomon Wayne Courthouse
 * The Black Canary
 * Finnigan's Bar
 * Liquors
 * Gotham Hardware
 * Glass, Mirrors, Shades
 * The Stacked Deck
 * Hotel Aventine
 * Vote Harvey Dent Campaign Office
 * Live Nudes
 * Baudelaire
 * TYGER Confiscated Goods Vault
 * Mad Hatter's Lair
 * Crime Alley
 * Monarch Theatre

Amusement Mile

 * Gotham Casino
 * Gotham City Olympus Nightclub
 * GCR
 * GCPD Building
 * Prawn Shack
 * Gotham Sea Pier
 * Scallop Bar
 * W. White - Gotham Fish Monger's
 * Krank Co. Toys
 * Dini Towers
 * Leslie Thompkins Medical Clinic
 * Poison Ivy's Lair

Industrial District

 * Sionis Industries
 * Sionis Steel Mill
 * Joker's Funland
 * Bill's Hotdogs
 * North Gotham Docks
 * Tricorner Naval
 * Zsasz's Hideout
 * Storage Warehouse 5B
 * Otis Flannegan Pest Control

Subway

 * Subway Station
 * Subway Tunnels
 * Subway Terminal
 * Subway Maintenance Access

The Bowery

 * Bank of Gotham
 * Live Nudes
 * Monorail
 * Sal Maroni's Italian Restaurant
 * Cyrus Pinkney's Institute for Natural History (Museum)
 * Iceberg Lounge
 * Shreck's Department Store
 * Jezebel Center
 * Gotham Casino
 * Carnival Toys & Games
 * Gotham Perfumes
 * Glass, Mirrors, Shades
 * Italian Cuisine
 * Subway Station
 * Magic and Props

Wonder City

 * Collapsed Streets
 * Wonder Tower Foundations
 * Wonder Avenue
 * Grimberg's Occult Store
 * Muftic Barbershop
 * Underhill & Davies Books
 * The Tea Hut
 * Wonder City Jewelry
 * Billingham Butchers
 * Adamson & Stjernberg Drugstore
 * Furniture Store
 * Fruit & Vegetables
 * Cloney Cobblers
 * Wonder City Textile Manufacturing
 * Crazy Clown Toys & Dolls
 * Royal Flush Tobacco
 * Wine & Spirit
 * Secret Corridor
 * Chamber of the Demon
 * Wonder Tower
 * Observation Deck

Outside of Arkham City

 * Gotham City Hall
 * Black Mask Hideout (Robin's Challenge map)
 * Freight Train Escape (Robin's Challenge map)
 * Blüdhaven (mentioned only)
 * Arkham Asylum(Can be scanned as a Riddle)
 * Metropolis (mentioned only)
 * Keystone (mentioned only)
 * Wayne Manor (DLC only)
 * Batcave (DLC only)

Steel Mill

 * Waste Exchange
 * Loading Bay
 * Assembly Line
 * Smelting Chamber
 * Cooling Tunnel - B
 * Cooling Tunnel - D
 * Freight Elevator
 * Boiler Room

Museum

 * Trophy Room
 * Gladiator Pit
 * Torture Chamber
 * War Room
 * Armory
 * The Iceberg Lounge