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