PUBG - Glitchy multiplayer game where you eject 12 magazines from your AK47 at point blank range, but they one shot you with a pistol.
CoD:MW & MW2 Multiplayer - Bunny hopping knifers who spew you toxic grief, because they died by your tactically placed AP mine... Oh and the nade spam deaths at the start of a match. Single-player story in the first game was good.
SiN - Showed promise, but ended up as an episodic mess.
Daikatana - It had great idea, but the graphics were a complete abomination, even for its time.
Halo - Sorry guys and gals, I cannot fathom the hype behind this one with generic shooter.
Star Wars Battlefront 2 - Fantastic graphics and single-player story, but I had hoped for more SP stories/campaigns with each of the different classes. Plenty of potential (and money grabbing dlc) there. MP is meh if you have crap reactions like me or you are not familiar with the maps.
Ark - Rubber-banding lag demoralises any MP, but still a decent game..
Total War: Attila - Going to ruffle feathers here - some really good ideas in this game, however I feel it is blighted by poorly designed UI. The Warhammer series arrived at the right time to change and refresh a brilliant genre that was going stale. Britannia has more fluid combat, but is missing that racing pace of land grabbing and army building. However the politics play is good, as you cannot trust your own family...
Star Gemini Warlords - I was hoping this would be a blend of Eve and Freelancer, but sadly it was buggy and wouldn't play on anything not Win 8. However recent DLC & updates have improved the game.