m0ney on 20 November 2016
I guess Mafia 2. It was many years in making and I like all fans of the original could not wait and had no doubts it would be at least very good, but when it finally came out 8 years after the original it turned out to be a complete bust - no real story, forgettable characters, run of the mill cover shooter, busy work missions. Later we learned that all those years it was going through development hell with changes of engine and dev teams, but the irony is that from technical standpoint it was actually flawless.
Deus Ex (2000) - a game that pushes the boundaries of what the video game medium is capable of to a degree unmatched to this very day.
