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