As a player of visual Novels,
I was surprised by the amount of fun I had
doing the "Choose your own adventure" style of gaming
in text based narratives.
Of Course, there are never enough games where you play the villain.
If you too are tired of 9 out ever 10 undead games being called
"Crush the dead" or "Kill the Evil Wizard", consider giving this title a try.
In some ways being able to see ahead by "Knowing the strength " of enemy kingdoms, them being all listed at an even 20, takes away from the mystery and replayablility. Possibly if you rolled a 5d4 for each kingdom and kept the values hidden (Or simply listed Tough, sturdy, faltering, weak, and Feeble)
In addition, the actions generating hostility could also detract from kingdom strenght. If you had a script where you add up all hostility numbers towards a race, say 5 cumulitive points, leading to a 5% chance every non-scripted action for them to randomly loose a kingdom health point.
I know, the coding is tricky.
Ive been using deep ai for developing basic codes myself while learning software engineering...