Not the worst, but the most frustrating: Darksiders 2. I got a game breaking bug in the foundry and could not continue. I tried every solutions suggested on the web and nothing worked. 8 hours in and I have to start over again, not knowing if it will happen again.
I actually liked Risen 2 and Two Worlds, I feel so alone right now.
Alone in the dark Bulletwitch Battlefield 3 (at least for the single player) CoJ: The Cartel (had to start the game over three times because I kept running into the same game breaking glitch) Dead Rising 2 ( so disappointing) Sniper Ghost warrior