Many custom character sketches are included, and the player can create or integrate their own. You can customize your characters stats, alignment, and sex. Character development is level-based and experience based. Some skills are based on a mixture of both. The algorithms behind the gameplay and skill system have taken me well over 3 years to write.
All characters have access to all skills available through guild teachings.
Some are simply for reward, while some are necessary to continue onward with the storyline. Magic is essential in Mordor. You get the idea. There are over 100 spells in the game. There are over 400 items and monsters in the game as well.