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