Steam Summer Sale 2018 is a special set that was made available during the 2017 Winter Holiday Sale. The cards initially became available on June 14, 2018 , though were not craftable into a badge until the sale began on June 21, 2018.
There are 10 cards in the series, and you can earn three cards per day by enter a tile from the Saliens game that was released alongside the sale. You will also earn a card each time you use your Discovery Queue, up to 3 times per day. You can also earn cards by crafting a badge from any other card set - doing so will give you one card at random in addition to the normal badge crafting rewards. Additionally each $10 spent from buying games will grant you one card.
Trading Cards
Foil Cards
Badges
Level 1 Intergalactic Summer Sale Badge - Lvl 1
Level 2 Intergalactic Summer Sale Badge - Lvl 2
Level 3 Intergalactic Summer Sale Badge - Lvl 3
Level 4 Intergalactic Summer Sale Badge - Lvl 4
Level 5 Intergalactic Summer Sale Badge - Lvl 5
Level 6 Intergalactic Summer Sale Badge - Lvl 6
Level 7 Intergalactic Summer Sale Badge - Lvl 7
Level 8 Intergalactic Summer Sale Badge - Lvl 8
Level 9 Intergalactic Summer Sale Badge - Lvl 9
Level 10-14 Intergalactic Summer Sale Badge - Lvl 10+
Level 15-19 Intergalactic Summer Sale Badge - Lvl 15+
Level 20-49 Intergalactic Summer Sale Badge - Lvl 20+
Level 50-74 Intergalactic Summer Sale Badge - Lvl 50+
Level 75-99 Intergalactic Summer Sale Badge - Lvl 75+
Level 100-149 Intergalactic Summer Sale Badge - Lvl 100+
Level 150-199 Intergalactic Summer Sale Badge - Lvl 150+
Level 200-499 Intergalactic Summer Sale Badge - Lvl 200+
Level 500-999 Intergalactic Summer Sale Badge - Lvl 500+
Level 1000-1999 Intergalactic Summer Sale Badge - Lvl 1,000+
Level 2000-3999 Intergalactic Summer Sale Badge - Lvl 2,000+
Level 4000-5999 Intergalactic Summer Sale Badge - Lvl 4,000+
Level 6000-9999 Intergalactic Summer Sale Badge - Lvl 6,000+
Level 10000-12499 Intergalactic Summer Sale Badge - Lvl 10,000+
Level 12500-19999 Intergalactic Summer Sale Badge - Lvl 12,500+
Level 20000-24999 Intergalactic Summer Sale Badge - Lvl 20,000+
Level 25000-29999 Intergalactic Summer Sale Badge - Lvl 25,000+
Level 30000-34999 Intergalactic Summer Sale Badge - Lvl 30,000+
Level 35000-? Intergalactic Summer Sale Badge - Lvl 35,000+
Foil Badges
Level 1-4 Intergalactic Summer Sale Badge - Foil Lvl 1
Level 5-9 Intergalactic Summer Sale Badge - Foil Lvl 5
Level 10-19 Intergalactic Summer Sale Badge - Foil Lvl 10
Level 20-49 Intergalactic Summer Sale Badge - Foil Lvl 20
Level 50-99 Intergalactic Summer Sale Badge - Foil Lvl 50
Level 100-199 Intergalactic Summer Sale Badge - Foil Lvl 100+
Level 200-299 Intergalactic Summer Sale Badge - Foil Lvl 200+
Level 300-? Intergalactic Summer Sale Badge - Foil Lvl 300+
Emoticons
:2018salienbeast1: (common)
:2018salienpsychic: (common)
:2018salienbeast2: (uncommon)
Profile Backgrounds
Intergalactic Sale - Background 1 (common)
Intergalactic Sale - Background 2 (common)
Intergalactic Sale - Background 3 (common)
Intergalactic Sale - Background 4 (uncommon)
Intergalactic Sale - Background 5 (uncommon)
Intergalactic Sale - Background 6 (rare)
Intergalactic Sale - Background 7 (rare)
Card Artwork