Batman: Arkham Gaslight

Batman: Arkham Gaslight is an Elseworlds game. It uses the same engine as the Arkham Series.

Plot
The plot takes place in 1893. Batman has been operating for four years and has recruited Dick Grayson as Robin. Batman is after criminal mastermind Black Mask who is in a mob war with Rupert Thorne. Batman is attacked by Killer Croc, who turns out to be an assassin Black Mask hired. The other assassins are Bane, Firefly, the Electrocutioner and Copperhead. Hoping to learn, Black Mask's location, Batman tracks Rupert Thorne to his penthouse where he encounters the Electrocutioner and Catwoman. Thorne reveals that Black Mask is Roman Sionis.

Batman tracks Sionis to the Sionis Steel Mill, where he defeats Copperhead.

Black Mask attacks the Royal Gotham Hotel, rigging it with gunpowder and taken the guests hostage. Batman defeats the Electrocutioner again. Batman finds Black Mask but is attacked by Bane.

Infiltrating Bane's HQ, Batman learns that Bane has uncovered his true identity. Firefly attacks Gotham's bridge but Batman is able to defeat him and his borns.

Batman defeats Bane, who loses his memory of Bruce Wayne's identity, and then Black Mask. During the credits, Amadeus Arkham states his intention of create Arkham Asylum to house it's worse criminals.

Anarky
Anarky leaves several clues across the city.

Calendar Man
Batman investigates the latest string of holiday themed murders. He eventually catches Julian Day.

Lady Shiva
Lady Shiva is one of the assassins hired by Black Mask.

Rupert Thorne
Batman teams up with Catwoman to destroy Rupert Thorne's money.

Characters

 * Batman/Bruce Wayne
 * Robin/Dick Grayson
 * Catwoman/Selina Kyle
 * Black Mask/Roman Sionis
 * Firefly/Garfield Lynns
 * Electrocutioner/Lester Buckhinsky
 * Copperhead
 * Anarky/Lonnie Machin
 * Lady Shiva
 * Mad Hatter
 * Calendar Man/Julian Day
 * Killer Croc/Waylon Jones
 * Alfred Pennyworth
 * James Gordon
 * Harvey Dent
 * Rupert Thorne
 * Amadeus Arkham