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