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 all of the Rot.
Meditate at all Meditation Spots.
Collect 50 Rot Hats.
Find Toshi's Harpoon Relic.
Restore all of the Flower Shrines.
Deliver all Spirit Mail.
Hit 3 Enemies with a single Rot Infused Arrow.
Destroy a Moth enemy with a Bomb.
Find Toshi's Village Crest Relic.
Capture a picture in Photo Mode.
Open all Cursed Chests.
Find Toshi's Incense Relic.
Learn the Dash Ability.
Defeat the Corrupted Woodsmith.
Find Adira's Village Heart Relic.
Find Adira's Hammer Relic.
Find Adira's Ox Relic.
Hit 3 critical hit spots in 3 seconds.
Learn the Bomb Ability.
Discover the Farm.
Defeat Corrupted Taro.
Find Taro's Lantern Relic.
Find Taro's Food Offering Relic.
Hit 3 enemies with a single Multi-shot.
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.
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.
Unlock all ability upgrades.
Beat the game on Master difficulty.