Deckard Cain says this when spoken to in Diablo I and Diablo II.
(Which is notable because he says it every time you address him, and he identifies items for free, so many players had to hear this annoyingly often)
Orcs and Goblins
name of race and title of Army book for Warhammer Fantasy Battle. It could also be a reference to the first game in the Warcraft series, named Orcs and Humans.
Dungeons and Dragons
Famous Roleplaying Game.
Ghouls ’n’ Ghosts
The title of a Capcom game released on multiple platforms.
Kings and Quests
Reference to King's Quest, an adventure game series by Sierra Entertainment.
Tutorial
You don't have to but it wouldn't be a bad idea to burn the rope.
The name of this chapter is reference to Star Wars Episode II: Attack of the Clones.
At the start of the chapter you see burned hovel with 2 skeletons lying in front of it.
One might see it as a reference to movie Star Wars: New Hope in which Luke’s aunt and uncle die similarly.
I've never heard of goblins hitting anything this big before.
Another reference to Star Wars: A New Hope
Gram's Workshop
the sign, Ingvar's comment that “in the distant north there is only war”, and the Warhammer placed on the anvil are references to Games Workshop and its product “Warhammer”.
RUN TO THE HILLS! RUN FOR YOUR LIVES!!
A reference to Run To The Hills, a song by Iron Maiden.
Goblins before the fight with the shaman will yell “Intruders, Blast them!” when player enters the forest.
Stormtroopers reference
Goblin Shaman at the end of the chapter yelling “Kalimaaaah!
Indiana Jones and the Temple of Doom
When using the random-teleportation staff, the goblin shaman will yell “Beam me!” and “Scotty!”
The name of this chapter, is a reference to Star Wars Episode IV: A New Hope.
No, Mr. King… I expect you to die
James Bond. “The Machine” is a reference to the laser that Goldfinger uses for his attempt to kill James Bond. Or it could be in reference to “The Machine” in The Princess Bride
Admiral Agbar yelling “It’s a trap!”
Star Wars: Return of the Jedi. Admiral Akbar's “It’s a trap” has become a meme. The voiceover also sounds like "It's a tarp!" which is an alternate of the meme.
When defeating the warlock, he will begin casting a lighting spell and the King will throw him into a trapdoor.
Star Wars: Return of the Jedi
The soldiers running into the Town Grinder yelling Freedom!
The name of this chapter is a reference to the game Minesweeper.
The entire chapter…
…is a reference to Lord of the Rings. Specifically the mines of Moria. Passing through the mines, the enterance in the side of a mountain, the goblin archers inside.
There’s even a secret area with a sword called Stung, which was made by the elves, and glows when enemies are near. It lies beside two skeletons spooning and bearing great resemblance to Frodo and Sam.
The name of this chapter is a reference to Castlevania: Symphony of the Night, as is Vlad's flinging of his wine glass. Twilight also is the name of a novel series which also features vampires.
Right at the beginning there is a skull on the left side of a sign, it names itself Murray and talks
Monkey island 3 The Curse of Monkey Island
Looking in the water on the right of an island where you fight two trees, you can see an X-shaped vehicle
Star Wars: The Empire Strikes Back
A female body carrying relic in the secret tomb chamber before entering the chapel that contains the spell “call undead”
Tomb Raider
The music playing while in the village in front of Vlad's castle
Extremely similar to that of the village “Tristram” in Diablo.
Vlad will tell you to "Save the village - save the world!" if you walk up to the castle first
Heroes reference, Save the cheerleader - save the world.
The crest over the door of the castle
Is the Paradox Interactive symbol.
Your character will say “Hey, it’s the guy from Loom” if you look into the mirror in the castle