The Protectors of Etheria is a stand-alone mod of the game Warlords Battlecry 3 (i.e. it can be run without having the original game installed - 100% free full game). It is an improved RTS/RPG game with new campaigns, quests, terrain, units, items, heroes, modding features and more. Beta versions available for download!
Improved interface
I didn't know knight was a race. I'm jk, but I think you should allow the player to decide their good-evil alignment. I personally love the d&d good evil table
If you are referring to Perks, although some are set up based on your race, you still can change them when leveling up (with a high cost of Ability Points) as you please. It is not impossible to see knight heroes leading undead in skirmishes, it's just that most knights end up being good by nature, culture and education (i.e. how they are grown).