Arkham Horror: The Card Game - The Drowned City Campaign Expansion

Pre order. Restock Expected September 2026.

In The Drowned City Campaign Expansion, one to four investigators explore the mysterious and deadly city of R’lyeh as it rises from the ocean’s depths. As players venture into the tomb-like ruin, they’ll scale the city’s crumbling foundations, scour the sea floor for alien artifacts, navigate mind-bending machinery and shifting corridors, and discover an ancient history that was drowned with the city itself. Along the way, they’ll experience a unique story that changes based on their chosen investigators, and it all culminates in a climactic battle against Cthulhu himself!