The complete megahit game that set the world afire. Plus All-New Episode IV: Thy Flesh Consumed.The demons came and the marines died. Except one. You are the last defense against these hell-spawned hordes. Prepare for the most intense mutant-laden, blood-splattered action ever! The texture-mapped virtual world is so real, you don't just play DOOM - you live it.The Ultimate DOOM takes you beyond anything you've ever experienced. First, you get all three original episodes - that's 27 levels of awesome, explosive excitement. Then it really blows you away with an all-new episode: Thy Flesh Consumed. Now you're dead meat. Just when you think you're getting pretty good at DOOM, you get hit with Perfect Hatred, Sever the Wicked and seven other expert levels never seen before! They're so incredibly tough, the first 27 levels will seem like a walk in the park!

numbersix says

10/10 - Agree (10) Disagree (1)

Doom.

This was not the FIRST first person shooter.
(Check this link: Arcade-museum.com - technically [ it uses an over the shoulder view - chasecam anyone ] that is an FPS, from 1987!)

But Doom is very special.

Doom has something. An edge. Some stuff that modern games lack.

Graphics - at the time (circa 1993), an amazing game world was rendered (and on a common PC screen.) From non 90 degree walls, to many various textures, and architecture, Doom showed us something not seen to date.

Weapons - shotguns, machine guns, rockets, sci-fi guns, and some melee weapon. This versatile armory has defined multiple generations of FPS arsenals! I dare you to find one FPS since that doesnt have some derivative of this weapon set.

Opponents - A varied bestiary from the depths of hell. What more could you ask for. A despicable enemy and the fire power to take them down. Brutally.

But Doom has 2 even more important elements.

Atmosphere - with a combination of sound and lighting Doom presented a feel no previous game world had. I found the creepiest thing to be running into imps in dark hallways. They werent the games badest foes, but they made up for it with their creep factor. Especially in the dark.

Fun - Doom was outrageous fun. Many modern games could be improved by taking a page out of the Doom bible. And its still fun.

What Doom brought to the table was pure awesome, and few games since compare.