How to get Trading Cards and Badges on Steam?

Have some idea for steam badges. Use earlier unlocked version of badge. : r/ Steam

Steam Trading Cards, Kenshi Wiki

Steam players can now earn coupons for new games by playing old ones

Now that Hades has trading cards, here's all the badges you can craft with them! Unseen is the foil. : r/HadesTheGame

What are 'trading cards', 'badges', 'gems', and 'booster packs' on Steam and what purpose do they serve? - Quora

Steam Badges - Emilio Gómez

Steamlevels Steam Enhancer

Whats the best Steam Badge in your opinion? - Page 2

ProtonDB Badges Steam Deck Plugin – Steam Deck Life

Throne of Lies®: Medieval Politics - +Steam Trading Cards, Badges, Emojis, Backgrounds are Here! - Steam News