TellTale's The Walking Dead series took most gamers completely by surprise. When it was announced, the game was met with little excitement. However, with each episode released, the series garnered not only more critical acclaim, but also respect from gamers for its excellent writing and characters.
With TellTale having only released a few titles such as Sam & Max and Back to the Future, most of us didn't know what to expect from the developer. However, TellTale managed to create an immersive and powerful narrative influenced by player choice.
TellTale has done an excellent job (okay, maybe not so much with Jurassic Park!) at weaving their own stories into pre-existing, licensed universes.
Image source: GameSpot