What games do you own?

Half-Life is quite possibly the best first-person shooter ever created. Unlike most first-person shooters, it doesn't just focus on the run-around-and-shoot-things aspect. There is a heavy emphasis on story. And I don't mean there's a million cutscenes that interrupt the action every second. Instead of cutscenes, Half-Life uses in-game scripted events to tell its story without interrupting the gameplay. Also, there are a few segments that involve platforming and/or puzzle solving. For example, there's this one area with a giant monster which is blind but extremely sensitive to sound. If you make even the slightest sound, it will attack you and probably kill you instantly. None of your weapons will do anything to it. In order to get past it, you have to make as little noise as possible. You can use grenades to distract it, though. I would go into more detail, but this is getting too long. I would highly suggest you play this game if you ever get the time.