File:MarkofKrypton.png After Game Update 18, Marks of Krypton can no longer be earned or spent. They can be converted to Marks of Triumph. The following is its historical information. Marks of Krypton are a form of Currency mainly awarded to players by completing the Fortress of Solitude Raids. They are used to purchase Tier 3 PVE Kryptonian Iconic Battle Suits.