The phrase "deepest dungeons" refers to the darkest and most hidden places, often used figuratively to describe a difficult or challenging situation. Full definition
Battle Chasers: Nightwar is an RPG featuring deep dungeon diving, turn - based combat presented in a classic JRPG format, and tons of secrets, story and randomly - generated replay goodness. (gamespot.com)
Battle Chasers: Nightwar is an RPG featuring deep dungeon diving, turn - based combat presented in a classic JRPG format, and a rich story driven by exploration... [Read full story] (consoleob.com)
Deep Dungeons of Doom, a retro RPG game looking like it was built for the Dream caster but available on the IOS devices (ipads, iphones etc.). (invisioncommunity.co.uk)