There are a total of 45 achievements and secret achievements which are worth a total of 1,000 points. Listed below are those that are currently known and what needs to be done to get them.

Gratuitous Carnage (10)
Kill 15 enemies with dash attacks.

Nutcracker (10)
Shatter 30 enemy shields.

Words Of Compassion (10)
Make 5 Apollo-aligned dialogue choices.

Words Of Courage (10)
Make 5 Ares-aligned dialogue choices.

Words Of Cunning (10)
Make 5 Hermes-aligned dialogue choices.

Words Of Wisdom (10)
Make 5 Athena-aligned dialogue choices.

Wrath Of Olympus (10)
Call upon 10 God Powers.

Aquarius, Peerless Warrior (15)
Complete the constellation Aquarius, routing legions of Greece's finest warriors.

Deimos, Fist Of Ares (15)
Complete the constellation Deimos, mastering Ares' combat style.

Eridanus, River Styx (15)
Complete the constellation Eridanus, slaying a host of the condemned.

Helios, Searing Brilliance (15)
Complete the constellation Helios, mastering Apollo's combat style.

Leo, Savage Lion (15)
Complete the constellation Leo, proving your skill at basic combat.

Parthenos, Spear Of Virtue (15)
Complete the constellation Parthenos, mastering Athena's combat style.

Zephyrus, Wind Shear (15)
Complete the constellation Zephyrus, mastering Hermes' combat style.

Magic Missile (20)
Skewer 25 enemies with thrown spears.

Piercing Gaze (20)
Impale 25 enemies.

Severance Package (20)
Decapitate 25 enemies.

Smashing Success (20)
Pulp 25 enemy heads.

Weaponmaster (20)
Collect every equipment piece.

Human (25)
Complete the game on Human difficulty.

Bright-Eyed (25)
Earn maximum Favor with Athena.

Silver-Tongued (25)
Earn maximum Favor with Hermes.

Stout-Hearted (25)
Earn maximum Favor with Ares.

Sun-Blessed (25)
Earn maximum Favor with Apollo.

Ursa Major, Great Bear (25)
Complete the constellation Ursa Major, proving your total mastery of combat.

Argo Navis, The Argo (50)
Complete the constellation Argo Navis, finishing the voyage of the Argo.

Hero (50)
Complete the game on Hero difficulty.

Corona, Crown Of Mastery (100)
Complete the constellation Corona Borealis, proving yourself the ultimate hero.

Legend (100)
Complete the game on Legend difficulty.