Here is the full list of all 25 Royal Heroes achievements.
Collect the whole set
Find and kill all of famous vampires
Come to dark side. We have cookies. And extra spell slot.
Clear a whole other dimension. Get Warping Power increase.
Warp a few times
Find and restore a famous weapon. Get Warping Power increase.
Craft a weapon that only the worthy can wield
Veni Vidi Vici!
Discover all void spells
Sacrifice a weak one to make your army stronger
Discover all earth spells
Discover all air spells
Discover all water spells
Discover all fire spells
Find and 'pet' at least 10 sheep
Flawless victory - no casualties
Hire a 4 star hero
Do something useful. DOIT!
You can't be a winner all the time
Dont be a Batman - do it!