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

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Why do people buy Steam Trading Cards? - Quora

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What can you do with STEAM gems? How do you personally use them? - Quora

Why do people try to get achievements on Steam? - Quora

What does “rig chain slings on the yards” mean on 1800 sailing ships? - Quora

What's the point of converting a Steam card into a Gems bag? Isn't it better to just keep the Steam cards and sell them? - Quora

What's the use of Anarchist and Balkan trading cards in CS:GO? - Quora

Steam Trading Cards: How to Profit

How to Buy, Sell, and Use Steam Trading Cards