Much of this data is based on the videos from Derrick Defies, who claims to have figured out more about Evony’s internal mechanics, with greater proof, than anyone other source I have seen.

Skill Books

• The Ground and Mounted speed skill books do not actually do anything based on testing
  • A simple test is attack a keep with a single ground unit in it.
  • attack with a single t5 siege (350 range)
  • attack with l2 range increase
  • attack with ground speed
• The Ranged Troop Range Bonus skill books have misleading/false numbers
  • Each book gives you a bonus of 17 units over the prior.
  • The L1 book gives you a range bonus of 17 units
  • The L2 book gives you range bonus of 34 units
  • The L3 book gives you a range bonus of 51 units
  • The L4 book gives you a range bonus of 68 units
• The Siege Machine Range Bonus books are off by a factor of 10.
  • The L4 book gives you a range bonus of 20