Gotta go with half life. Granted it had its place for the day it was made and Ill even go so far as to say it effected how games were developed in the future. However it is not engaging or interesting for me. Its story is in a state of quantum flux where its barely there and completely impenetrable at the same time. Gordon Freeman is not a good character either because we cant really roleplay him as we want to, its not like Dark souls where the chosen undead was a complete blank slate, or Dragon age origins where you had a few bits and could fill in the rest, Freeman is a fleshed out character but the irony is we never get to see that in half life.