Lairs: Deeper Dungeons adds HUGE 6x8 dungeons for you to play with, including more walls and treasure chests and bigger pads to record your progress.
Lairs is a two-player game for ages 10 and up that plays in about 35 minutes. Players begin with a set of walls, traps, treasures, and monsters, then use them to create a challenging catacomb for their opponent to explore while at the same time attempting to navigate their opponent's dungeon using guile, deduction, and a little bit of luck. The stakes are high! Only one player can make it into the Guild!
Expansion, not a standalone game.