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.
Defeat the Corrupted Rot God.
Reach the Mountain Shrine.
Defeat Corrupted Toshi.
Find Toshi's Harpoon Relic.
Find Toshi's Village Crest Relic.
Find Toshi's Incense Relic.
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.
Discover the Farm.
Learn the Bomb Ability.
Hit 3 enemies with a single Multi-shot.
Defeat Corrupted Taro.
Use 5 Rot Actions in a single combat.
Find Taro's Lantern Relic.
Find Taro's Food Offering Relic.
Find Taro's Knife Relic.
Learn the Bow Ability.
Destroy a Shield Sticks without breaking its shield.
Discover the Forest.
Restore a Flower Shrine.
Discover the Village.
Find the first Rot.
Hit 3 Enemies with a single Rot Infused Arrow.
Destroy a Moth enemy with a Bomb.
Destroy an enemy by shooting a Bomb out of the air.
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.