Lunaa is the largest and primary moon of Abmarah, a white-silver world much like Earth's Moon. Said to be named after the primordial Lunaa, and related to both the godesses Atrius and Arryestria. Visible on most nights, it takes up a good part of the sky and shines brightly. The phrase "lunar cycle" commonly refers to Lunaa's regular one-month orbital cycle. The brightness and phases of Lunaa are constant and predictable, and its surface is pocked with craters big and small. It is quite bright on a clear night, able to cast pale shadows.

Lunaa and its cycle dominate both the tides and arcane magic. Via mythology or some unknown properties, the magical nature of the moon affected Abmarah's magic quite substantially. For those who practiced lunar magic, the phase of the moon affected the potency of their spells, peaking in the full moon and dipping at the new moon. Similarly, the curse of Lycanthrophy is tied to Lunaa, as those afflicted forcibly transmogrify into their hybrid forms during Lunaa's full moon and often lose all control of themselves.