Slay The Spire – How to unlock the Heart

In this short video I show exactly how to unlock and fight the Heart — the ultimate final boss in Slay The Spire. You’ll learn the two-run requirement, which characters count, and how to get the three special keys (Ruby, Emerald, Sapphire). Follow these clear steps to trigger the Heart encounter: win a full run with the Ironclad, Silent and Defect, then in a later run collect the three keys (Ruby from using Recall at a campfire, Emerald from a buffed elite, Sapphire from choosing the key in a chest) and finish Act 3 to face the Heart. How to unlock the Heart in Slay The Spire? How to get the Ruby, Emerald and Sapphire keys in Slay The Spire? How to trigger the Heart boss fight in Slay The Spire? 0:00 Intro — What we’ll cover 0:07 What is the Heart (final boss) 0:15 Unlock overview — two-run requirement 0:22 Requirement 1: Beat a full run with Ironclad, Silent and Defect 0:33 Requirement 2: Find the three keys in a later run 0:46 How to get the Ruby key (use Recall at a campfire) 0:56 How to get the Emerald key (defeat a buffed elite) 1:02 How to get the Sapphire key (choose the key from a chest) 1:13 Finish Act 3 to fight the Heart 1:24 Closing and final tips #SlayTheSpire #UnlockTheHeart #GamingTips #Roguelike Find out more: