Here is the full list of all 37 God of War achievements. It takes around 40-50 hours to unlock all of the achievements on Windows.
Obtain all other achievements
Retrieve all treasure from the Workshop’s center chamber
Read all of the Jötnar shrines
Use treasure maps to find all of the dig spots
Fully upgrade a Runic Attack
Kill all of Odin’s Ravens
Free all of the Dragons
Defeat the nine Valkyries
Explore all the Lake of Nine has to offer
Collect all of the Artifacts
Obtain Ancient armor set
Obtain Traveler armor set
Fully upgrade the Leviathan Axe
Fully upgrade the Blades of Chaos
Complete all of the Trials of Muspelheim
Spread the ashes
Defeat Baldur
Learn the languages of Muspelheim and Niflheim
Kill 1,000 Enemies
Craft an outfit for Atreus
Complete all of Brok and Sindri’s Favors
Ride the ship out of Helheim
Fully upgrade your rage
Rescue Atreus
Fully upgrade your Health
Assist all of the wayward spirits
Heal Atreus
Retrieve the Blades of Chaos
Defeat Magni and Modi
Upgrade a piece of armor
Defeat the Dragon of the Mountain
Allow the Light Elves to return home
Fully explore Veithurgard
Survive the Witch’s Woods
Obtain a Runic Attack Gem
Defend your home from The Stranger
Slot an Enchantment into your armor