The mod’s official description notes that this re-record meant listening to the original male JC’s readthrough.
Related: Eidos-Montreal Moves To Four Day Work Week This meant that the group spent hours re-recording the protagonist’s 1700 lines of dialogue with voice actress Karen Rohan. That's especially important in a game like Deus Ex where immersion is part of the game’s experience. They spent a lot of time and effort in making sure that the addition of a female protagonist option in the game felt natural and not like a simple model swap and vocal dub. This mod, known as the Lay D Denton Project, comes courtesy of a group of modders known as Lay D Dev.
Of course, doing so was no simple task as it meant an entire re-recording of Denton’s lines and the careful replacement of pronouns throughout the entire game. This gender swap is all thanks to a group of modders who took meticulous care to add the gender selection feature back into Deus Ex one that was cut in the early development stages of the game. 21 years after players got to explore the world of Deus Ex as male protagonist JC Denton, they will get the chance to explore that same world as a female JC Denton.