This DLC for Rise of the Tomb Raider consists of two modes: Croft Manor is an exploration of Lara's past as she searches the manor for clues about her mother, and Lara's Nightmare is a roguelike mode that has you exploring the same mansion as it is taken over by a dark presence.

Both modes are actually really fun! Croft Manor delivers on the character exploration I felt the main game was lacking, and Lara's Nightmare turns said map upside down by filling it with dangerous monsters. Of all the DLCs for the game, I think this is by far the best.