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