After the attributes, I worked on the skill system. Skills come in three types in EPT: Original, Professional, and Bonus Spells. Original skills are somewhat similar to Backgrounds in D&D or other OSR games. These are your mundane skills for making a living as a Barber or a Mountaineer. They come in three classifications: Group I -- Plebian, Group II -- Skilled, and Group III -- Noble. These classifications are ordered by difficulty. A die roll determines how many of each group a player gets to choose. Players make another roll to receive more original skills when they level up.
Professional skills are those the character gets from their class; each class has a list of skills that must be taken basically in order. Fighter skills are weapons and tactics. Priest skills are languages and spells. Magic User skills are all spells. The complexity of the skills increases as you go down the list. At first level, players roll to see how many professional skills a character starts with. Each time they level up, they take another professional skill.
After some probability and statistics work, I derived how many 'Groups' of skills the average character received from Original and Professional skills and Bonus spells. These calculations drove the amount of skill points divvied out in the tables, so characters in the new system would be approximately equal in number of skills to characters in EPT. I wanted a 5th level magic user from EPT to be equivalent to a 5th level in the new system.
I'll write that up in the next blog post.