Gnostica is still under development.

• Full Rules (PDF)
• Rules Summary (PDF)
• FAQ (Wayback Machine)
• Strategy (Wayback Machine)
• Gnostica at BoardGameGeek
• Gnostica at Looney Labs

• Zarcana to Gnostica, a design history of Gnostica (Wayback Machine)
• Differences between the two (Wayback Machine)
• Andy Looney on Zarcana over Gnostica