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