A level, also known as a circle of experience (e.g. the 50th circle of experience), is a unit of measure used to gauge the experience of an adventurer in Achaea. There are 100 levels, each level more and more progressively harder to achieve and each with a unique name. At the 99th level, an adventurer may earn the powers of a Greater Dragon. Every level gained earns an adventurer 5 lessons, or even bound credits every 5 levels. Similarly, when losing a level, one may lose both lessons and experience. An adventurer's level is also a reflection of one's overall rank listed in one's score.