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