
Exclusives on the PlayStation 3 have a higher average Metacritic score than those on the Xbox 360, according to an analysis on IndustryGamers. The comparison found that 360 exclusives have an average score of 66.6%, while the PS3 exclusives average at 75.6%. The 360 does have a much larger number of exclusives, however, at 218 to the PS3’s 60.
The year-by-year breakdown shows a steady decrease of 360 exclusives, which makes sense. Developers were reluctant to put their games only on the PlayStation 3 when it first launched, due to a smaller install base. The two are slowly reaching parity, and are now achieving roughly the same number of exclusives above a 70% score. Xbox 360 still has far more exclusives in a given year below a 70%, but that’s not exactly something to brag about.
One could say this has something to do with Sony’s studio culture and how it cultivates exclusive titles, but the explanation might be more simple. The findings could be attributed to the law of large numbers — as the number of tests increases, the probability of a consistent average increases too. The PlayStation 3’s lack of exclusive games in the study means that outliers have a greater impact on the average. The 360 had a head start at launch, and a larger install base that gave it more exclusives per year for quite a while.