ZombieGenesis said:
Just finished Portal 2 (put it off forever) and admit I adored the finale. Not just because the game is funny and enjoyable in itself, but also the layers of context involved (such as Coraline's relationship with Chel, and the subtext of the Promethius myth).
Since I believe Portal and Half Life will be absorbed into a singular entity from this point on, is it worth going back and playing the HL games? I game 2 a brief try in the past and found it utterly dull...
Seems even Valve has given up on that one.
Half Life 2 will give you context. While Portal 2 is allegedly nearly a hundred years in the future, in reality the level of decay looks like only a few decades. Portal 1 is sometime after the events of Half Life 1, since GlaDOS has her offhand mention of the Combine tearing apart the surface. So in all likelihood, Portal 2 takes place during, or close after Half Life 2's and the episode's events.
Half Life 2 is a much more dystopian game, with far more sense of oppression. It is nowhere near as funny as Portal, but playing through the games gives you a better understanding of just how messed up the world is. Portal exists in its own, self contained bubble. With only the speakers and the computer's words to go on, it is a funny little adventure, self contained. When you play Half Life, that little bubble gets a bit darker.
Compared to Cave Johnson, Black Mesa is relatively functional, but the level of insanity behind their projects is no less ludicrous. Aperture Science is the happy head trip, while Black Mesa is the nightmare. Both are gigantic industrial complexes doing mad science, except while one only had the minor inconvenience of deadly neurotoxin, the other was ground zero for an alien invasion that wiped out 99% of Earth's population within hours.
Playing Half Life not only enhances the absurdity of Portal, but it gives you a new perspective. It really is quite dangerous, and it was only through luck and Cave Johnson's lunacy that the Resonance Cascade happened at his opponent's lab than at his.
Also, they're good FPS titles, with solid shooting mechanics and great level design. They're cheap, go ahead and check them out.