Here is the full list of all 65 Perseus: Titan Slayer achievements.
Defeated Earth Elemental on Herald Ascension.
Defeated Medusa on Herald Ascension.
Defeated Abyss Keeper on Herald Ascension.
Defeated Abyss Keeper on Guardian Ascension.
Defeated Abyss Keeper on Legend Ascension.
Defeated Abyss Keeper on Immortal Ascension.
Defeated Arachne on Herald Ascension.
Defeated Arachne on Guardian Ascension.
Defeated Arachne on Legend Ascension.
Defeated Arachne on Immortal Ascension.
Defeated Abyss Guardian on Herald Ascension.
Defeated Abyss Guardian on Guardian Ascension.
Defeated Abyss Guardian on Legend Ascension.
Defeated Abyss Guardian on Immortal Ascension.
Upgraded the bow to the maximum.
Finished the game on Herald Ascension with the bow.
Finished the game on Guardian Ascension with the bow.
Finished the game on Legend Ascension with the bow.
Finished the game on Immortal Ascension with the bow.
Defeated Calibos on Herald Ascension.
Defeated Calibos on Guardian Ascension.
Defeated Calibos on Legend Ascension.
Defeated Calibos on Immortal Ascension.
Defeated Chaos Dragon on Herald Ascension.
Defeated Chaos Dragon on Guardian Ascension.
Defeated Chaos Dragon on Legend Ascension.
Defeated Chaos Dragon on Immortal Ascension.
Finished the game on Herald Ascension with the daggers.
Finished the game on Guardian Ascension with the daggers.
Finished the game on Legend Ascension with the daggers.
Finished the game on Immortal Ascension with the daggers.
Upgraded the daggers to the maximum.
Defeated Dragon on Herald Ascension.
Defeated Dragon on Guardian Ascension.
Defeated Dragon on Legend Ascension.
Defeated Dragon on Immortal Ascension.
Defeated Earth Elemental on Guardian Ascension.
Defeated Earth Elemental on Legend Ascension.
Defeated Earth Elemental on Immortal Ascension.
Finished the game on Herald Ascension with the katana.
Finished the game on Guardian Ascension with the katana.
Finished the game on Legend Ascension with the katana.
Finished the game on Immortal Ascension with the katana.
Upgraded the katana to the maximum.
Defeated Kraken Titan on Herald Ascension.
Defeated Kraken Titan on Guardian Ascension.
Defeated Kraken Titan on Legend Ascension.
Defeated Kraken Titan on Immortal Ascension.
Defeated Lycan on Herald Ascension.
Defeated Lycan on Guardian Ascension.
Defeated Lycan on Legend Ascension.
Defeated Lycan on Immortal Ascension.
Defeated Medusa on Guardian Ascension.
Defeated Medusa on Legend Ascension.
Defeated Medusa on Immortal Ascension.
Enchanted a legendary item to the maximum.
Defeated Satyr on Herald Ascension.
Defeated Satyr on Guardian Ascension.
Defeated Satyr on Legend Ascension.
Defeated Satyr on Immortal Ascension.
Upgraded the sword to the maximum.
Finished the game on Herald Ascension with the sword.
Finished the game on Guardian Ascension with the sword.
Finished the game on Legend Ascension with the sword.
Finished the game on Immortal Ascension with the sword.