Drack asked you to meet him at the Vortex Lounge on the Nexus. He wants to play a game about thresher maws. It sounds extremely krogan.
Starts automatically after the completion of The Journey To Meridian.
Read and acknowledge the email from Drack, and then go to the Vortex Lounge. Drack explains the game, and says they have to wait for Kesh and Vorn. Nothing happens.