Deadfall Adventures: Heart of Atlantis is an Action-Adventure, Shooting, Single-player, and Multiplayer video game developed by The Farm 51. Throughout the game, the player takes on the role of a protagonist, James Lee Quatermain, who must fight against Nazi soldiers and supernatural enemies. The player will confront them in various environments like Egypt, the Arctic, and the Mayan ruins.

The player equips a compass that helps him find hidden treasures and improve his stats. The player can use Allan Quartermain’s notebook to solve puzzles and overcome traps. The game has major tasks, but the player must solve the side-quests to advance the story. Through the dark areas, the player can use a flashlight. The game has several unknown and unseen places where the character will fend off supernatural enemies like mummies.

The game lets the player use various weapons like revolvers, shotguns, and a knife for melee combat. While playing the game, the player controls the character from the first-person perspective. The game has core features such as Shooting Scenario, Different Enemies, First-person, Multiple Weapons, and Unseen Places.