Join Steam from May 15th until May 22nd at 10 am PT for Steam Sports Fest! All week long you'll find discounts, demos, and more in the wide world of sports-themed games. Also, you can take "wide world" in the widest possible way:
You'll find games that feature more traditional sports like basketball, soccer, football, and hockey; and you'll find games that feature parkour, aerial snow stunts, wacky golf, exploding balls, and more.
Source: YouTube