[zorrophreak]

Have to say, definitely the Half-Life franchise. I spent countless hours on the first game during sick days and snow days, and during the summer. When it comes to HL2 I just finished it despite having it for three years. I love the series, both in story and in gameplay.

DOOM (2016). Great combat, big guns, demons and heavy metal music. What else do you need?

Now that...is a very good point.