8. Quake
https://www.youtube.com/watch?v=VpiNDxssUL0 An absolutely classic first-person-shooter, Quake was developed by iD Software, the same fine folks who released Doom, and subsequently revolutionised and pioneered the concept of the FPS genre. Just by looking at the game's Wiki page, it's clear to see that it's a popular choice with gamers looking to breeze through in the shortest time possible, but this video takes it one step further. Just a shade over 10 minutes, and it's over, even on the Nightmare difficulty setting. Impressive.