As Evelyn reaches the heart of the facility, she confronts Lord Harrington, who reveals a shocking truth: The Behemoth is not just a war machine, but a key component in a larger plan to overthrow the corrupt governments and create a new world order. However, the British Empire and its allies will stop at nothing to prevent this.

You play as Evelyn Stone, a skilled and deadly Steam Ripper operative, with a talent for infiltration and sabotage. Born into a poor but brilliant family of inventors, Evelyn was recruited by Lord Harrington himself to join the Steam Rippers. With her expertise in steam-powered exoskeletons and advanced clockwork devices, she is one of the most feared and respected members of the rebel organization.

The game begins with Evelyn receiving a cryptic message from Lord Harrington, requesting her presence at an abandoned factory on the outskirts of London. Upon arrival, she discovers that the Steam Rippers have obtained intel on a top-secret Imperial project codenamed "The Behemoth." This massive steam-powered war machine, capable of leveling cities, is being constructed in a heavily fortified facility deep within the British Empire's heartland.