Nightmares From The Deep: The Cursed Heart review. Classic Game Room presents a CGRundertow review of Nightmares From The Deep: The Cursed Heart from G5 Entertainment for the iPad. Although it's a hidden object adventure game, you can play Nightmares From The Deep without finding a single hidden object. You can choose to play a round of Mahjong instead. Weird. You own a museum, you're setting up this strange new pirate exhibit and the exhibit comes to life. As in Ghostbusters 2, this is not good. This video review features video gameplay footage of Nightmares From The Deep: The Cursed Heart for the iPad and audio commentary from Classic Game Room's Derek.