It's sad to see people overlook niche masterpieces like Bloodborne, Metal Gear Solid, and Fallout 4, and give this award to a soulless mass market product. The Witcher 3 is vastly overrated on this forum by people who are blinded by pretty graphics and an average story. It has literally the worst combat ever made, and the game is basically a reskinned version of Assassin's Creed. Not to mention how CDPR lied about offering free DLC, and then proceeded to announce a $25 season pass. Added to that, the game runs at 20 seconds per frame on consoles. The developer comes off as slimy, so I don't even know how they won the developer of the year award.
I'm absolutely disgusted and you should be too. Go Bloodborne!