Ruby Crown Merge is a royal logic game about joining precious stones and rebuilding a castle one wing at a time. Matching rubies, sapphires, and emeralds on the court board fuse into rarer cuts, and a join made on a shared edge pays a higher court mark. Those marks restore the gatehouse, towers, halls, gardens, and the throne terrace, while citizen requests, a gem catalog, and a jewel collection record each craft the court has finished. A chronicle tells how the kingdom cuts heat into rubies, keeps sapphire halls for night work, and offers a finished relic back to the treasury. Daily favor turns once each day for virtual marks, energy, or a rose chip. Court marks and energy stay on the device and have no cash value. New wings open only after the stone they require has actually been joined.
Ruby Crown Merge is a royal logic game