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.
Collect 50 Rot Hats.
Deliver all Spirit Mail.
Restore all of the Flower Shrines.
Meditate at all Meditation Spots.
Find Toshi's Village Crest Relic.
Find Toshi's Harpoon Relic.
Find Toshi's Incense Relic.
Destroy 3 enemies with a single dash attack.
Learn the Dash Ability.
Open all Cursed Chests.
Hit 3 Enemies with a single Rot Infused Arrow.
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.
Discover the Farm.
Destroy an enemy by shooting a Bomb out of the air.
Capture a picture in Photo Mode.
Destroy a Moth enemy with a Bomb.
Learn the Bomb Ability.
Defeat Corrupted Taro.
Find Taro's Lantern Relic.
Use 5 Rot Actions in a single combat.
Hit 3 enemies with a single Multi-shot.
Destroy 3 enemies with a single Parry.
Destroy a Mage with its own bomb.
Find Taro's Food Offering Relic.
Find Taro's Knife Relic.
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.