The 20 best-selling games of the last year

We now know the 20 best-selling games of 2015, thanks to the Entertainment Software Association's annual report on the state of the video game industry.

The ESA's list comes from data gathered by the NPD group, a market research group that's been keeping track of game sales for years. The NPD tracks monthly sales of video games, but doesn't release those reports publicly.

It should come as no surprise that most of the best-sellers are recent titles in long-running game franchises - in a couple of cases multiple games from the same franchise made the cut. When you break them down by rating, half of the best-selling games are rated M for Mature, seven are rated E or E10+, and only three are rated T, highlighting the split between the two major demographics driving video game sales.

Ordered from lowest to highest, these are the 20 best-selling games of the past year.