Here is the full list of all 41 Kena: Bridge of Spirits achievements. It takes around 20-25 hours to unlock all of the achievements on Windows.
Beat the game on Master difficulty.
Unlock all ability upgrades.
Defeat the Corrupted Rot God.
Reach the Mountain Shrine.
Defeat Corrupted Toshi.
Find all of the Rot.
Meditate at all Meditation Spots.
Find Toshi's Harpoon Relic.
Restore all of the Flower Shrines.
Deliver all Spirit Mail.
Find Toshi's Incense Relic.
Open all Cursed Chests.
Collect 50 Rot Hats.
Find Toshi's Village Crest Relic.
Destroy a Mage with its own bomb.
Destroy 3 enemies with a single dash attack.
Destroy an enemy by shooting a Bomb out of the air.
Destroy 3 enemies with a single Parry.
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.
Destroy a Moth enemy with a Bomb.
Learn the Bomb Ability.
Hit 3 Enemies with a single Rot Infused Arrow.
Defeat Corrupted Taro.
Find Taro's Lantern Relic.
Hit 3 enemies with a single Multi-shot.
Find Taro's Food Offering Relic.
Destroy a Shield Sticks without breaking its shield.
Find Taro's Knife Relic.
Use 5 Rot Actions in a single combat.
Learn the Bow Ability.
Capture a picture in Photo Mode.
Discover the Forest.
Restore a Flower Shrine.
Discover the Village.
Find the first Rot.