HL2 for 1 reason only it reminded me how fun a good game can be. it had everything. balanced gameplay, great gfx for its time that still stand up today. a great story and just the right amount of missions... ending in a climax that has only ever been matched by a few games since. cod4 being 1 of em...
a good game hooks you till the end a great game hooks you for life... even now i still look forward to the day they announce HL3...