| Boutros said: But Half-Life didn't really invent anything new either. It simply mastered every aspect of what it tried to do much like Uncharted 2. And if Half-Life made the list then why not Call of Duty 4? |
Half-Life influenced the games industry in terms of story, or rather how to tell a story in a FPS. People actually stopped to talk to you, give you directions and open doors for you. Most games still relied upon cut scenes whereas Half-Life stuck to the First-Person perspective and allowed the story to unfold in real-time with you in complete control. Look at other single-player FPS games before it and then single-player games afterwards. It had a huge influence on every campaign mode in every FPS after it... even Call of Duty 4 
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It's also the game that helped introduced Counterstrike to the world and made Valve the company they are today. Without the success of Half-Life, Steam wouldn't exist and Valve wouldn't be the influential company they are now.
