Here is the full list of all 43 King of Dragon Pass achievements.
Build every fortification
Forge other clans into a tribe
Train big lizards as beasts of burden
Explore the map of Dragon Pass
Find your way home after being lost in the Otherworld
Complete the tutorial
Suffer a massive attack by the Beastfolk
Suffer a massive attack by the dragonewts and their kin
Suffer a massive attack by the Uroxi berserkers
Suffer a massive attack by the dwarfs
Suffer a massive attack by the trolls
Suffer a massive attack by the Telmori wolf-men
Succeed at every heroquest
Create a new clan by splitting
Achieve Kallyr the Hero’s destiny
Discover the easter egg
Have a clan leader elected as tribal queen
Win the Ten Year Ring as tribal queen
Have a clan leader elected as tribal king
Win the Ten Year Ring as tribal king
Become Queen of Dragon Pass
Become King of Dragon Pass
Succeed at five cattle raids in a row
Succeed at ten cattle raids in a row
Succeed at five raids in a row
Succeed at ten raids in a row
Win five times
Win ten times
Win as a peace clan
Train big lizards as battle mounts
Have 25 points of clan magic
End a feud
Select a Trickster to lead the clan
Hoard 25 treasures
Build a shrine to every deity
Learn every mystery
Earn the Ten Year Ring at the Hard level
Become King or Queen of Dragon Pass at the Hard level
Give a clan a new name
Win a tribal war
Make peace with the trolls
Achieved Kallyr the Hero’s greater destiny
Achieved Theya’s destiny