When Will Steam Summer Sale Start 2024. Mysterious cards start dropping 1 week before the sales event begins and will turn into steam summer sale cards that will be craftable. It's called steam autumn sale and it will.

Mysterious cards start dropping 1 week before the sales event begins and will turn into steam summer sale cards that will be craftable. The steam summer sale 2024 began today june 27, 2024, and will end on july 11, 2024.