Just got this game and im about 3–4 hours into it. i can say the game is similar to GoW 1 and 2 (combat and problem solving-wise)
there are a couple more twists and small differences which make the game more interesting!
You start off helping ‘Gaia’ a titan and fall into the underworld (yet again!) and you'll need to kill some gods one by one in order to complete your mission (killing Zeus and bringing down Olympus) and you can take their powers!
without giving too much away the storyline is awesome and its really brutal (in a good way!)