So I was gonna wait to do a full top 10 list because I wasn't sure if I'd get a chance to play something else before the year was up, but I'm pretty much booked for these last couple weeks, so figure it's fine to do it now.
1) The Witcher 3 - An instant classic. Lovely, huge open world with some of the best quests in any game ever made. The only other games I've ever felt so much joy just *existing* in is Bethesda RPG's(and I sadly haven't played Fallout 4 yet...). This game had so much love poured into it and the fact that they nailed it first try on their move to an open world style is quite amazing.
2) Bloodborne - A faster, more streamlined Souls game. Consistency of quality in this game is sky high, despite not having the breadth of the other games in terms of size and playstyles and whatnot. Artistic design is top notch, but I felt the game is marred by a subpar framerate for such a game that relies on timing and fast combat. What it does well, it does incredibly well, though.
3) Ori and the Blind Forest - picks got harder for me after the top 2, but I think this game is so nearly faultless that it deserves the final podium spot. 2d platformers aren't usually my favorite style of gameplay, but this game was all sorts of brilliant. Great challenge, great progression, and the music and visuals combine to make an experience that is downright spine-tingling at times.
4) Dying Light - Zombie game done right and also open world done right. They brought some fresh elements to both of these fairly saturated styles of games and made something special.
5) Tales From the Borderlands - This has the least amount of actual 'gameplay' of any on this list by far, but man, it still kind of blew me away how much I enjoyed going through it. Fantastic characters, good sense of humor(seriously), and some great quirkiness gave this game the kind of charm that you dont often see in gaming.
6) GTA V - A ridiculous accomplishment in terms of world building. Absolutely unmatched and perhaps will remain so til the next Rockstar open world game. But it also brought back a lot of the 'fun' missing from GTA IV, so the gameplay was also enjoyable. I didn't feel they did quite enough with the world and I'm disappointed they seem to have compromised the single player experience in favor of the wild west of the multiplayer side, but it was still an undeniably great game.
7) Project Cars - I know this game didn't live up to everybody's expectations, but honestly, it scratches an itch I had for a sim racer with good variety and AAA presentation very well. I actually find myself playing this more than I do Assetto Corsa, which I wasn't expecting back when I bought it.
8) Cities Skylines - This game has easily supplanted Sim City as the ultimate city builder. And it basically did it overnight. Tons of depth, nice graphics and good continual support make it fun to play to this day. I do wish there was a bit more goal-orientated challenge, though. The only real difficulty in the game is basically getting things to look right and dealing with the comprehensive transportation systems.
9) Call of Duty: Black Ops 3 - Had been a while since playing a CoD and this was a great one to come back to. Basically solely for the multiplayer, which is a ton of fun with the movement mechanics, lovely and well designed levels and also highly balanced weapon/character systems.
10) Madden 16 - Probably not many people here in the UK who care about the franchise, but this was a top Madden game, with an insane amount of features and ways to play. The controls have never felt better and there's some great additions to QB play and defensive play. The game is really only held back from being truly, truly great by the overpowered aggressive catch, which makes some games, especially multiplayer, total BS at times.