Welcome to the dark alleys of Victorian London. A place where evil has crawled out of the shadows and the fate of mortals lies in the claws of beasts and demons. Each player receives a starting deck of cards that represent their powers and with which they begin the game. In the following rounds, players buy new cards, improve their decks, and battle against other lords. Reptilian Tomb introduces the 4-player game into the world of Terrors of London, adding new types of lord abilities, never-before-seen monsters and relics, as well as Haven modules! A copy of Terrors of London is required to play.