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