Here is the full list of all 48 Conqueror's Blade achievements.
Reach Level 40.
Earn the badge "A Deadly Century" ten times.
Earn the badge "Noble Cause" three times.
Earn the badge "No Quarter" five times.
Earn the badge "God of War" four times.
Craft a piece of Rare equipment.
Craft a piece of Uncommon equipment.
Craft a weapon for the first time.
Disband any unit.
Earn the badge "Make It Happen" three times.
Collect three warhorses in your stable.
Reach Level 20.
Own ten units.
Unlock 10 units on the Unit Tree.
Switch your default warhorse.
Kill 200 enemy troops.
Create your first unit.
Own three units.
Kill 5 heroes.
Kill 10 Heroes.
Kill 20 enemy troops.
Earn the badge "A Deadly Century".
Earn the badge "Shatter the Ranks".
Earn the badge "Hat-Trick".
Get a badge "Quad Kill".
Earn the badge "No Quarter".
Earn the badge "Drop Dead".
Defeat Valen and his troops.
Reach Level 60.
Equip some horse barding.
Kill 100 Heroes.
Kill 200 Heroes.
Kill 500 Heroes.
Kill 2,000 enemy troops.
Kill 3,500 enemy troops.
Kill 8,000 enemy troops.
Unlock all the peasant units.
Disband ten units.
Craft 100 pieces of Uncommon equipment.
Craft a piece of Epic equipment.
Craft a piece of Legendary equipment.
Destroy every target on The Strawman's Challenge in between 20 and 25 seconds.
Earn the badge "Echoes of Achelous" 15 times.
Earn the badge "Overthrown" three times.
Earn the badge "Grand Bloodbath" five times.
Earn the badge "The Phlegethon Flows" three times.
Earn the badge "Cut a Swath" 30 times.
Craft 100 pieces of Rare equipment.