Many features of the original are retained, including the status bar face, sound effects and the majority of the weapons and monsters. It is very important to speak to the scientists and access computer terminals to attain vital information in order to progress through the game, similar to Doom 3. The player turns at 90 degree angles and moves space by space. Combat and movement are turn-based, allowing the player time to select their responses in combat. However, the game is fundamentally different in that it is a turn-based role-playing game, rather than a shooter, with greater emphasis on the plot. It is also visually similar to the original Doom. The game retains many of the elements of Classic DOOM, and is shown in the first person like the original.
