Sellers or giveaway sites maintain a database (pool) of legitimate keys they have already acquired. When you "roll" for a key, you are simply being assigned an existing one from their stock. Bulk Acquisitions:
Discord and Telegram bots that claim to drop random keys every hour. free random steam keys work
If the games are so cheap that developers give them away for free, how do the key websites make money? Sellers or giveaway sites maintain a database (pool)
Sites like Humble Store and Green Man Gaming frequently host legitimate giveaways to promote their storefronts . free random steam keys work
Gleam is a popular platform for marketing campaigns. Indie developers and publishing houses use it to generate buzz.