Games all about sports or sport-themed action.
CASUAL SPORTS
Games based on some real life sports, but not tied to any specific brands. These games usually have more casual feel than their licensed counterparts.

Golf Clash
Example games: Golf Clash, 8 Ball Pool
LICENSED SPORTS
Sports games based on real life brands (sports leagues etc.)

Madden NFL
Example games: Madden NFL, MLB Tap Sports Baseball