Gameitall 
The best story is one that sticks with you long after the game is done, one that you can talk about with friends, share ideas and theories. 2015 saw some great stories that will stay with us for a long time, from the search for a daughter and loved one, to the choices that lead to life and death, to the end of a generation.
AND THE NOMINEES ARE!
WITCHER 3: WILD HUNT (CD PROJEKT RED)
SOMA (FRICTIONAL GAMES)
UNTIL DAWN (SUPERMASSIVE GAMES)
METAL GEAR SOLID V: THE PHANTOM PAIN (KOJIMA PRODUCTIONS)
CALL OF DUTY BLACK OPS 3 (TREYARCH/ACTIVISION)
AND THE WINNER IS:
WITCHER 3: WILD HUNT (CD PROJEKT RED)
The Witcher 3: Wild Hunt is an improvement on every level, and story is no exception. The world is filled with side quests that could very well be their own story, and the main storyline which follows the search for Geralts lost pupil Ciri before the Wild Hunt finds her is heart wrenching and exciting. This is one that will stay with us for a while.
