6. ‘Battlefield’ Series - The Megalodon
If the intensity of "ordinary" warfare isn’t enough to keep you entertained in recent Battlefield titles, then you should try to summon the massive Megalodon. In Battlefield 4, you and nine other players would wait on a floating buoy in the Nansha Strike map in order to summon the creature. In Battlefield 1, the process was more intricate: In the Fort De Vaux map, you have to interact with three valves, throw a grenade down a specific pipe, and kill three players in a crater full of water near capture point C. Only then will the fierce beast appear--and kill everyone it touches. (Some reward.)
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5. ‘Portal’ - The Lair of the Rat Man
The walls of Aperture Science might be nice and clean, but behind them are multiple havens created by Doug Rattaman, the sole surviving employee of the company. As you make your way through the game, you’ll run into his many hideouts, which contain numerous drawings and scribbles. One of his most famous writings is the now-iconic “The cake is a lie,” which references GLaDOS’ fake promise of cake at the end of your testing session.
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4. ‘S.T.A.L.K.E.R.: Shadow of Chernobyl’ - Gordon Freeman
Original Chernobyl was horrific enough; a second incident in the city makes the city even more dangerous, and one of the lives it claimed was that of the famed Half-Life protagonist. You can find his body in the Wild Territory area, specifically in an underground tunnel. In order to reach his location, you’ll have to traverse a small pocket of Electro, which can kill you. Looting Freeman’s body reveals that he carried a powerful Desert Eagle pistol and a PDA, which provides some information about how he made his way into the city. Unfortunately, his signature crowbar is nowhere to be found.
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3. ‘Doom 2’ - John Romero Easter Egg
The final map of Doom II will have you face the Icon of Sin, but there’s something hidden behind the terrifying boss. By using the “idclip” code, you can run past the Icon of Sin and enter a smaller room, where you’ll see the severed head of John Romero, the series’ famed designer and one of the co-founders of id Software. In place of taking down the main boss, shooting Romero’s head is another way to end the game.
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2. ‘Borderlands 2’ - Cavern of the Creepers
Gearbox Software managed to include a small pocket of the popular survival building game within the Borderlands universe. The northwest corner of the Caustic Caverns features a hidden cave that is blocked with Minecraft-skinned bricks. You’ll also have to fight a few Creepers until the “Badass Creeper” appears. Taking down these enemies will give you Minecraft-themed skins, head, and weapons.
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1.’Diablo II’ - The Secret Cow Level
What started out as a false rumor about a secret level in the first Diablo game became a reality in the sequel. In order to access it, you had to combine a Wirt’s Leg and a Tome of Town Portal with the Horadric cube. This creates a portal that transports you to the famed area. Inside is a massive horde of cows that wield polearms. As usual, killing these enemies drops gold and loot for you to collect. The level also contains a Cow King boss, which you can kill to acquire the Cow King’s leather item set.
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