When the latest "Doom" game from id Sofware was finally unleashed, it received mixed reviews. Overall, the game is still worth playing.

"Doom" is basically about a dude who finds himself in an unknown facility situated in Mars. And as he tries to unravel the mystery of the Red Planet, he is set to battle a hoard of demons -- yes, the same kind of monsters from previous installments.

According to Uproxx, "Doom" presents a variety of surprises for its players -- each stunningly beautiful albeit scary. And to make the whole skirmish between Doomguy and demons a little bit fierce, id Sofware wittingly added a creepy, thumping music. And make no mistake, it fits perfectly well to the in-game surrounding.

It holds true, however, that there is nothing really fresh or new with the latest "Doom" game. From the character to the gameplay to the story, everything is pretty much what its predecessors had. But of course, id Software did a fine job of perfecting it.

In fact, "Doom" is deemed by critics as a near-perfect, innovative shooter game. It is even among the finest single-player campaign shooter games in the recent years.

As for the visuals and gameplay of "Doom," it is only right that id Software upgraded them. If not, the game is completely nothing but a duplicate from previous installments.

Meanwhile, Kotaku reports that "Doom" is quite fun when played on difficult mode. Basically, the game has found kinds of difficulty levels, namely, "I'm Too Young To Die (Easy)," "Hurt Me Plenty (Normal)," "Ultra-Violence (Hard)" and "Nightmare (Very Hard)."

The publication states that once the game is beaten (through "Nightmare"), a secret difficulty surfaces. It is called "Ultra-Nightmare" in which players are only allowed to beat the game with a single life -- nothing more, nothing less. After that, it is over.