Editing Wolfenstein 3D (section)

==Gameplay==
[[File:Wolf3d pc.png|thumb|left|In-game screenshot of the DOS version, showing the player character firing a submachine gun at guards|alt=A submachine gun firing at a falling brown-uniformed Nazi, while a second Nazi aims a pistol at the viewer]]
''Wolfenstein 3D'' is a [[first-person shooter]] presented with rudimentary [[3D computer graphics|3D graphics]]. The game is broken up into [[level (video games)|levels]], each of which is a flat plane divided into areas and rooms by a grid-based pattern of walls and doors, all of equal height.<ref name="CarmackComm"/> Each level is themed after [[Nazi Germany|Nazi]] bunkers and buildings. To finish a level, the player must traverse through the area to reach an elevator.<ref name="Dragon197"/> Levels—ten in the original episodes—are grouped together into named episodes, with the final level focusing on a [[boss (video games)|boss fight]] with a particularly difficult enemy.<ref name="HG101"/> While traversing the levels, the player must fight Nazi guards and soldiers, dogs, and other enemies while managing supplies of ammunition and [[health (game terminology)|health]]. The player can find weapons and ammunition placed in the levels or can collect them from dead enemies; weapons include a knife, a pistol, a submachine gun, and a rapid-fire [[chain gun]].<ref name="Dragon197"/> The player can also find keys that allow them to pass through locked doors. While the levels are presented in a 3D perspective, the enemies and objects are instead 2D [[sprite (computer graphics)|sprites]] presented from several set viewing angles, a technique sometimes referred to as [[2.5D]] graphics.<ref name="MOD8793"/>

The player's health is represented by a percentage starting at 100, which is diminished when they are shot or attacked by enemies.<ref name="Dragon192"/> If the player's health falls to zero, they lose one [[life (video games)|life]] and start the level over with a knife, a pistol, and eight bullets.<ref name="Dragon197"/> The player begins each episode with four lives and can gain more by finding extra-life tokens or by earning enough points. Points are scored by killing enemies or collecting treasures scattered throughout the levels.<ref name="Dragon192"/> Points can also be scored by killing all enemies in a level, collecting all treasure, finding all secret areas, or completing a level under a par time; the player's completion ratio and speed is displayed when a level is completed. Secret areas containing treasure, health refills, or ammunition can be found in hidden rooms revealed by activating certain wall tiles that slide back when triggered.<ref name="HG101"/> The original version of the game allows the player to save their progress at any point, though in many of its [[porting|ports]] the player can only save between levels.<ref name="Dragon197"/><ref name="HG101"/>