14. I Am Alive
https://www.youtube.com/watch?v=HZ6Aely9YrQ This trailer for I Am Alive was great, making the game appear like a brilliant, narrative driven post-apocalyptic journey long before anyone had heard of The Last of Us. The compelling story that's told within those few minutes managed to generate a decent level of hype for the otherwise low-key title. Unfortunately, problems in development meant that the final game was underwhelming, but this trailer serves as a reminder of what it could have been.