https://qz.com/1311421/steam-summer-sale-2018-when-it-starts-and-ends/

The Steam Summer Sale for 2018 starts today (June 21), which is great news for people who love video games and hate having any extra money.

Steam, the video game distribution platform created by Valve Corporation, provides daily discounts on select games, but its recurring seasonal and holiday sales offer broader discounts for longer periods of time. During a Summer Sale, games can be discounted as much as 90%, though it’s more common to see between 30% and 50% off the usual price.