Level

A character's level is a numeric representation of their experience and overall power level, from 1 to 100. It affects many other game mechanics, including but not limited to:

• carrying capacity
• access to abilities
• +Hit / +Dam
• experience per mob kill
• hand dice

A character increases their level by accumulating enough experience ("xp" for short) and using the "gain" command. The amount of xp needed to gain a level can be viewed via the "level" command.

From the helpfile:

Usage: level

The level command displays the amount of experience needed for your last five
levels and your next five levels (if applicable).

For more information, see: help gain, help score, help guild