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The game was originally pitched by Telltale as a spin-off of Valve's Left 4 Dead franchise, but Valve turned down the pitch leaving Telltale to go to Robert Kirkman to successfully pitch him a game based on his Walking Dead comic book series. The same unique choice-based story-driven style of gameplay was kept by Telltale developers between the canceled Left 4 Dead project and the greenlit Walking Dead project, which the devs thought was a better fit for Kirkman's universe than Valve's franchise anyway and which would also be a style that would be reused heavily by Telltale in their later licensed games.
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According to The Walking Dead's co-creator and writer Robert Kirkman, he became interested in making a game based on the comic after playing Strong Bad's Cool Game for Attractive People. Sometime later, Telltale Games would successfully pitch their idea of a Walking Dead game to him:
"I played their Strong Bad game. I like their approach to puzzle-based storytelling. I thought they were more focused on telling a good story, and I thought they were good at engaging the player in the narrative. That's what interested me in making a Walking Dead game. They came to me with a proposal that involved decision-making and consequences rather than ammunition gathering or jumping over things; I was impressed by that. The only thing that's really special about The Walking Dead is the human characters and the narrative that they exist in. It's all about drama and loss, so I felt like doing a game with that focus, but that wasn't something that I knew was really possible. When Telltale came and told me about the way that making decisions changed the game and the way that players would be forced to choose between two bad decisions and how the survival aspect of The Walking Dead would actually be brought to the forefront – that's when I was sold on the game."
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At the end of "A New Day", when Lee walks up to Clementine and Duck, Duck will describe a comic he read called "Super Dinosaur." This is a comic written by creator of The Walking Dead, Robert Kirkman.
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Doug once had his own subquest in early development, in which Lee had to knock the pole onto his brother while Doug attracted the walkers away with Kenny's truck. Lee had to cut the electricity before cutting the pole with a fire axe.
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In Episode 5: No Time Left, while in the room with the dead couple on the bed, talking to Kenny repeatedly will eventually cause Lee to walk over and face the player, and say "Randy Tudor. Good man. Damn fine man. Powerful 'stache. One of the greats."
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One is named "Nick Stokes", who seems to be wearing a uniform with a badge. The badge also features a photo of the character Nick Stokes from CSI: Crime Scene Investigation.
The other is called "Jeff". Jeff is the only character who has the special walker texture.
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