Based on the Chinese SteamCN website and from several other sources, Steam Database reports that this year's Steam Summer Sale will start on June 25, 2019 at 10 PST. The event will last two weeks and end on July 9.
According to PC Gamer's analysis, Summer Sale usually has the biggest discounts of all regular promotions on Steam. All publishers are invited to take part in the sale, so we can expect tens of thousands of discounts. In order not to get lost in the deluge of discounts, it is advisable to prepare yourself in advance, adding to the wish list the games that interest us the most. Steam will inform you as soon as the prices of the titles we want are reduced so that we do not miss out on any potentially interesting offers.
Summer Sale in addition to promotions often brings with it other attractions. Last year, during the sale, users could play a simple mini-game where they could win free games. In addition, there will certainly be an opportunity to obtain occasional collector cards. Traditionally, you will be able to create special badges from them or, if you are not interested in cosmetic items for our profile, sell them profitably on the Steam market.