Here are a few of the worst games that came out this year:
Tony Hawk’s Pro Skater 5
Animal Crossing: Amiibo Festival
IRONFALL Invasion
Afro Samurai 2 Revenge of Kuma
My vote goes to Tony Hawk's Pro Skater 5 because it had an artstyle that doesn't suit that type of skateboarding game along with all the bugs and glitches etc.
Fallout 4 also had a lot of problems like buggy quests, crashes, freezes, save files getting corrupted, players getting stuck and many more bugs and glitches. I have the game and i haven't played it yet but it's just wrong for Bethesda to release a game with that many problems.