Mars is overrun with hellspawn again. Our Doom 3 walkthrough includes a full walkthrough and tips on every weapon, as well as lists of cheat codes, cabinet codes, and easter eggs.

In DOOM 3 your trusty flashlight is essential for flushing out enemies from the dark. Though invariably, they almost always manage to creep up on you regardless.

Essentially, the enemies of DOOM 3 know nothing more than to run straight towards you and attack wildly. While this can lead to some tense battles, you can definitely use this to your advantage.

One of the bosses appearing in Doom 3, Sabaoth is a hellishly transformed Sergeant Kelly, a humanoid man atop a tank with the two grotesquely fused to one another. He makes for quite the adversary ...

17 years later and Doom 3 still stacks up as one of id Software’s greatest hits. That’s thanks to its fantastic arsenal of guns, terrifying enemies, and engaging level design.

Even so, Doom 3's physics are handled well, resulting in some excellent moments when enemies get sent flying from the blasts of your weapons, simultaneously bursting into ashes.

And so Doom 3 was more of a cinematic, survivor horror-tinged adventure, with smaller groups of enemies that loved to get in your face, or lob fireballs from impenetrably deep shadows which you ...

In the end, Doom 3 made me glad I upgraded, and it made me proud to be a PC gamer. But I have to dock it a point for the seemingly repeating environments, dumb enemies, and lack of a strong ...

Doom 3 rarely throws a ton of enemies at you at once. Combat is slower. And there is a big focus on setting up scares and letting you explore outside combat.

I've thought before about a possible Doom 3 remake.The environments look good, there are some terrific enemy designs - especially the big zombies - and that P90-style sub-machine gun is great fun ...