https://www.polygon.com/2017/12/2/16727700/playstation-plus-free-games-2017-value-analysis

On Wednesday, PlayStation announced the last batch of free games to PlayStation Plus subscribers for December, bringing to 74 the number of titles it offered in 2017. Were they any good? What would they cost otherwise? In short, what do the numbers say about the value of this PlayStation Plus benefit?

We’ll try to answer that question this year as we have the past two years. To that, however, we’ve added a few more questions: How old is the game? Did Sony publish it? What publisher did PlayStation Plus use the most? Did these appear earlier on Xbox Live Games With Gold?