Doom Eternal has only been out for a few days, but already fans have been scouring its levels for hidden Easter eggs. Luckily for them, the game is filled with them. And luckily for you, we're here to show you the most interesting ones and where to find them.

id Software has filled Doom Eternal will many wonderful, intriguing, and sometimes difficult to access Easter eggs that are sure to please any fans of the series (and pop culture in general). There are a lot of good ones here, so strap in.

RELATED: 10 Hidden Secrets That Many Still Haven't Found In Doom Eternal

These are ten Easter eggs that only true fans caught in Doom Eternal.

10 Dopefish

Dopefish is an id Software classic. This is a buck-toothed fish that could be found in the Well of Wishes in Commander Keen in Goodbye, Galaxy, a side-scrolling platformer released back in 1991. These guys are actually found all over the Cultist Base level, and each find is more terrifying than the last! One Dopefish can even be found on the cover of one of the collectible music albums, so keep your eyes peeled!

9 Shadows Don't Scare Commander Keen

Speaking of Commander Keen, his helmet can actually be found on one of the album covers! Scattered throughout Doom Eternal are various record albums and album covers. And in the Cultist Base (the same place you find all the Dopefish) is one with a skull wearing Commander Keen's helmet. And that's not all. The album title is Shadows Don't Scare Commander Keen, which obviously makes a direct reference to Commander Keen himself. Wait, so does this mean that Commander Keen exists within the world of Doom? We suppose it does. Shared id Software universe confirmed.

8 Guns & Bullets Magazine

The Guns & Bullets magazine is chock full of wonderful Easter eggs and references within itself. If you zoom into the magazine table, you will see one magazine titled Guns & Bullets (an obvious nod to Guns & Ammo). On this magazine you will see blurbs for various in-universe things, including "10 prepper approved meals in a jug!" But perhaps the best reference is the BFG 10,000, which claims, "The BFG 10K is finally here, and yes, it's over 9000!" Leave it to id to reference centuries-old memes. Feels like centuries at this point, anyway.

7 The Doom Guy's Bookshelf

It seems like the Doom Guy has a lot of time for reading. The bookshelves are filled to the brim with interesting references. For example, you'll see the catalogue of id Software's past games, the Vault Dweller's Survival Guide (an obvious reference to Fallout), and Mesa Science Monthly (Half-Life).

RELATED: 10 Best Launch Games For The Xbox 360, Ranked (According To Metacritic)

There's also references to the Dopefish, Quake, Duke Nukem (a brilliant book titled Why I'm So Great written by Dork Norkem), and various Doom-related spoofs of famous books (Don Slayote, The Guts of Wrath, Splatterhouse Five among others). Whenever you see a bookshelf in a video game, chances are that it's filled with Easter eggs.

6 Daisy

 

For those who are unaware, Daisy is the Doom Guy's pet rabbit. This guy has quite the private life when he's not out saving the world from demons! Various Daisy-related Easter eggs can be found throughout Doom Guy's private hub. You can spot an empty rabbit cage with some food (Daisy can also be seen wandering throughout the levels, so keep an eye out!), and Doom Guy even has what looks to be an oil painting of himself and Daisy. It's nice to know he has such a big heart.

5 Thumbs Up

We all know the iconic ending to Terminator 2 - knowing that he is the final link to the future, the Terminator decides to sacrifice himself. And because he cannot self-terminate, he has Sarah lower him into a vat of molten steel. Just before he goes under, he gives John one final thumbs up. Cue the tears. You can actually replicate this scene in Doom Eternal, provided you jump into the molten steel. It's a cute little Easter egg that pays homage to one of the best movie endings of all time. What more can you ask for?

4 Hellwalker

It seems like Doom Guy is a fan of comic books as well. Specifically ones like Hellboy (then again, it makes a lot of sense!). Directly to the right of Doom Guy's computer is a stack of pizza boxes and a comic book. If you zoom into said book, you'll see that it's titled Hellwalker, an obvious reference to Hellboy.

RELATED: The 10 Hardest Platinum Trophies To Get On PS4

If the title alone wasn't obvious enough, the comic book has the same color scheme and font as Hellboy, all but ensuring that it's a Hellboy Easter egg. We wonder if Doom Guy saw that horrible movie...

3 Soul Cube

Anyone who played Doom 3 surely remembers the Soul Cube, as it was the most powerful weapon in the entire game. And even though these newer Doom games are more in-keeping with the classics, it's nice to know that they're still remembering and respecting the third. A tiny little Soul Cube can actually be found on Doom Guy's desk, right in front of his computer monitor and between two speakers.

2 Full Doom Games

When you buy Doom Eternal, you're not just buying Doom Eternal - you're actually buying the first two games as well! Once again found in the Doom Guy hub is an old school computer, and on this computer are two "?" files. These files are actually the first two Doom games! To access Doom, you need to complete Doom Eternal. And to access Doom 2, you simply need to input the password "FlynnTaggart." After doing so, sit back, relax, and enjoy the simple beauty of the original Doom games. They're still pretty good!

1 Flynn Taggart

Who is Flynn Taggart you ask? Well, we're glad you asked! Flynn Taggart is actually the protagonist of the original Doom tie-in novels - four officially licensed novels that were written by Dafydd ab Hugh and Brad Linaweaver. References to Flynn Taggart include the aforementioned password, as well as a book located on Doom Guy's bookshelf. It's titled "Ret-Conned: The Life and Times of Flynn Taggart." Not only has id not forgotten about Doom 3, it seems like they haven't forgotten about those unfortunate novels, either!

NEXT: Resident Evil: 5 Video Game Enemies That Are Scarier Than Nemesis (& 5 That Aren't)