Nice to see an Old Man Murray shoutout. Last I heard, one of the writers of that site and other web classics was working at Valve, so maybe some of the wit and wisdom can live on.
All of which games you should play, JUST FOR THE WRITING.
This game gets so much nostalgia cred, someone should really clean it up.
And this game has no nostalgia for me, but it is amazing. The gameplay, which is mostly 3d platforming, isn't the stand-out (though the gameplay is better than I expected). The amazing thing is the writing, both in terms of dialogue/voice-acting, and in terms of the plot. So awesome. It's surprising how few really good writers there are in gaming, and how most gamers apparently don't even notice, and so the standard is so low. And then you play a game written by Tim Schafer and/or the OMM guys, and boom.