Here is the full list of all 41 Kena: Bridge of Spirits achievements. It takes around 15-20 hours to unlock all of the achievements on Windows.
Find all of the Rot.
Deliver all Spirit Mail.
Meditate at all Meditation Spots.
Restore all of the Flower Shrines.
Collect 50 Rot Hats.
Beat the game on Master difficulty.
Defeat the Corrupted Rot God.
Reach the Mountain Shrine.
Defeat Corrupted Toshi.
Find Toshi's Village Crest Relic.
Find Toshi's Harpoon Relic.
Find Toshi's Incense Relic.
Destroy 3 enemies with a single dash attack.
Open all Cursed Chests.
Learn the Dash Ability.
Defeat the Corrupted Woodsmith.
Find Adira's Village Heart Relic.
Hit 3 critical hit spots in 3 seconds.
Find Adira's Hammer Relic.
Find Adira's Ox Relic.
Unlock all ability upgrades.
Discover the Farm.
Destroy a Moth enemy with a Bomb.
Destroy an enemy by shooting a Bomb out of the air.
Learn the Bomb Ability.
Hit 3 enemies with a single Multi-shot.
Destroy 3 enemies with a single Parry.
Destroy a Mage with its own bomb.
Capture a picture in Photo Mode.
Hit 3 Enemies with a single Rot Infused Arrow.
Defeat Corrupted Taro.
Find Taro's Lantern Relic.
Find Taro's Food Offering Relic.
Find Taro's Knife Relic.
Learn the Bow Ability.
Use 5 Rot Actions in a single combat.
Discover the Forest.
Restore a Flower Shrine.
Destroy a Shield Sticks without breaking its shield.
Discover the Village.
Find the first Rot.