Here is the full list of all 29 Pendragon Rising achievements.
Refuse to surrender to the Saxons.
Gain a symbol of rulership.
Always willing to stand alone in combat.
Gain a legendary weapon.
Use the hidden causeway to the Isle of the Dead.
A new start for Britain.
Voluntarily relinquish your claim to the throne.
Gain a royal guesting cup.
Make a choice between two affairs of the heart.
Become Pendragon of Britain.
Make peace with the Saxons.
Decisively win every battle.
Kill the heir to the Saxon throne.
Give heart to the Britons with inspirational speeches.
Gain as much support as possible.
Gain the support of the kingdom of Dyfed.
Perform an act of true selflessness.
Gain the support of the kingdom of Kernow.
Gain the support of the kingdom of Dumnonia.
Gain the banner of your people.
Gain the support of a religious fanatic.
Save as many villagers as possible from the Saxon wolves.
Save the life of a child beset by dreams of wolves.
Gain the support of the kingdom of Lothian.
Gain the support of the kingdom of Strathclyde.
Gain the support of the kingdom of Powys
Earn a royal reward.
Summon the dragon to aid Gwynedd.
Survive your first battle.