Humble Bundle is currently giving away free Steam keys for Kingdom: Classic! You just need to Subscribe to the Humble Bundle newsletter to score a key, it's that easy!
1. Subscribe to the Humble Bundle newsletter.
2. Login into your Humble Bundle account to unlock your key.
3. Redeem your key on Steam.
Claim your Dream of Mirror Online Summer Fun DLC Pack Steam Key and unlock lots of in-game items ...
Use the code “GOLDENCOMMUNITY” to receive 1000 XP and 2 random cosmetics for Magic: the Gathering...