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