Moments later, the base shakes as power wildly fluctuates. The voice he's speaking with says that there is nothing to worry about. He rushes to a communication console and tells a mysterious voice that a teleporter's stabilization field has a problem.

On the Mars Research Facility, a hurried scientist walks between a couple of guards. empty An empty box with a few lightsįlares. It depicts early versions of Mars City and Delta Labs. e3_intro The introductory movie, which is actually a map. It is thought that this would have been changed into a boss battle for the end of Alpha Labs, but this concept was later moved into the Delta complex. It ends with the Hell knight eating the Marine's head. e3_3 An early version of the Alpha Labs with influences of sectors 1 and 3. The player must get past the commandos and replace the extraction canister. e3_2 A mix of areas and designs from the EnPro facility and the CPU complex. The Marine discovers the consequences of the Delta Labs experiment gone wrong. Levels e3_1 Based on an early concept of the recycling plant.

The three levels included are early designs of maps that are included in the final game. Some of the weapons use models from Quake III Arena, and it is likely that the models themselves were meant as placeholders.

Sound effects for the atmosphere, enemies, and weapons.

Graphics for the heads-up display ( HUD).

Differences from release include, but are not limited to, the following:

Doom 3 downloads