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.
Defeat the Corrupted Rot God.
Reach the Mountain Shrine.
Defeat Corrupted Toshi.
Meditate at all Meditation Spots.
Find Toshi's Harpoon Relic.
Hit 3 enemies with a single Multi-shot.
Find Toshi's Village Crest Relic.
Find Toshi's Incense Relic.
Hit 3 critical hit spots in 3 seconds.
Learn the Dash Ability.
Defeat the Corrupted Woodsmith.
Find Adira's Village Heart Relic.
Find Adira's Hammer Relic.
Find Adira's Ox Relic.
Discover the Farm.
Destroy a Moth enemy with a Bomb.
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.
Learn the Bow Ability.
Use 5 Rot Actions in a single combat.
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 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.
Restore all of the Flower Shrines.
Deliver all Spirit Mail.
Beat the game on Master difficulty.