Here is the full list of all 46 For Sparta achievements.
Hold the Persians for 5 days
Hold the Persians for 10 days
Hold the Persians for 15 days
Hold the Persians for 20 days
Die in the Pass of Thermopylae holding the Persians
Die for Sparta 20 times
Hold the Persians for 10 days 10 times
Wield a Spear
Wield Double Daggers
Kill an enemy with a shout
Kill an enemy with a kick
Kill an enemy with a bomb
Kill an enemy with an egg
Stun 10 enemies
Kill an enemy with an orb
Kill 5 enemies with a single Black Hole
Be enraged
Have the Greeks kill 10 enemies with their Rain of Arrows
Enter a Sacred Pool and heal
Get a Blueprint from a Donation Box
Defeat one enemy of each race
Defeat every enemy in the game at least once
Defeat 1000 invaders
Hold the Persians for 10 days without crafting any Item
Don't heal for 7 days in a row
Survive 3 days of battle in a row without taking any damage
Reach day 5 of battle without taking any damage
Survive an entire day of battle with 5 or fewer Health Points
Heal back up to full health after taking at least 20 points of damage
Reach day 10 of battle without using your melee attack
Reach day 10 of battle without using your ranged attack (any ranged attack)
Reach day 10 of battle without rolling
Have two items of the same kind in your inventory
Craft 50% of all the items in the game
Craft 75% of all the items in the game
Defeat two enemies with a single spear
Change your size
Have at least 1000 Essences at one time
Have at least 200 Health Points at one time
Have at least 3 active Armor Points at one time
Have at least 15 Soul Points at one time
Have at least 10 different Blueprints in your Inventory
Find the Ghost of Sparta
Have the Ghost of Sparta give you at least 100 Essences
Eat 5 pieces of Food in a single run
Craft 20 Items in a single run