Most alchemy puzzle games are ad-supported or subscription-based. Terraforge is a one-time optional purchase with no ads. What sets it apart: 13 discovery tiers give exploration clear structure, from Primordial basics to Legendary rarities. The Grimoire organizes all 208 elements across 16 categories. 31 milestones reward progression from Apprentice to Master Forger. Recipes use thematic logic — combinations feel earned, not guessed. Native iOS. Fully offline. iCloud sync.