Classless

Classless mechanics are very simple. There are no classes.

More specifically, there are no restrictions on the abilities and skills that any character may achieve, provided that they meet the prerequisites, and no baseline penalties or bonuses for skills or abilities based on character creation. A character may choose to be a jack of all trades, or a master of a particular field. They may switch focuses at any time, take whatever ability they would like, without suffering for it in a mechanical way. While this could theoretically cause some trouble for a party without clear roles, it's up to the players and GM to prevent that.