Do I need to play 1 to play 2? Just got a ton of games off of steam sale (Portal 1&amp;2, Skyrim, The Orange Box). I got orange box over Half life complete because I heard u didnt need to play 1 to enjoy 2. However I love a good story, so would it make the experience that much better to play 1 or is it still satisfying to just play 2? Lastly, do I need to play all of the following episodes to enjoy the story (and that same question applies to if I owned 1 as well). Thanks and happy holidays!