Turbine room
Area Lowermost accessible deck on the RMS Titanic

G-Deck is the lowermost accessible deck on the Titanic. G-Deck is only accessible to the crew, and contains the Turbine Room and Engine Rooms, the Control Room, the Boiler Rooms and the Cargo Hold. Through G-Deck, one can also access the top of the False Smokestack. There are two ways into G-Deck: via a stairwell by the Second-Class Cabins on F-Deck, or via the Forecastle Deck, that leads into the Cargo Hold. There is also a door that leads from the Engine Room to Scotland Road, but it will only open from the inside.

While all of G-Deck is accessible in the first half of the game, only the Turbine Room is accessible during the sinking - attempting to enter the Control Room will result in Carlson being stopped by a crew member and instructed to get back up top, as the boiler and engine rooms are flooded.

Vlad Demonic, a stowaway, is only ever encountered on this deck, however he always escapes the Titanic regardless of the ending achieved.

Locations on the RMS Titanic
 Boat Deck  Boat Deck | Bridge | Compass Tower | Engineers' Promenade | First Class Promenade | Grand Staircase | Gymnasium | Officers' Promenade | Second Class Promenade | Second Class Stairwell | Starboard Vestibule | Wireless Room
A-Deck  A-Deck | A-Deck Promenade | Corridors to First Class Lounge | First Class Lounge | Grand Staircase | Passenger Cabins | Second Class Stairwell | Smoking Room
B-Deck  B-Deck | Aft Grand Staircase | Café Parisien | Forecastle Deck | Grand Staircase | Passenger Cabins | Second Class Stairwell
C-Deck  C-Deck | Aft Grand Staircase | Grand Staircase | Passenger Cabins | Poop Deck | Purser's Office | Second Class Stairwell
D-Deck  D-Deck | First Class Reception | Grand Staircase | Passenger Cabins | Second Class Stairwell
E-Deck  E-Deck | Reception Stairs | Scotland Road | Second Class Stairwell
F-Deck  F-Deck | Corridor to Squash Court | Electric Bath | Passenger Cabins | Reception Stairs | Second Class Stairwell | Squash Court | Turkish Bath
G-Deck  G-Deck | Boiler Room | Cargo Hold | Control Room | Engine Room | False Smokestack | Turbine Room