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.
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.
Collect 50 Rot Hats.
Deliver all Spirit Mail.
Find Toshi's Incense Relic.
Destroy a Mage with its own bomb.
Open all Cursed Chests.
Hit 3 enemies with a single Multi-shot.
Find Toshi's Village Crest Relic.
Hit 3 critical hit spots in 3 seconds.
Destroy 3 enemies with a single dash attack.
Destroy 3 enemies with a single Parry.
Learn the Dash Ability.
Defeat the Corrupted Woodsmith.
Find Adira's Village Heart Relic.
Destroy an enemy by shooting a Bomb out of the air.
Destroy a Moth enemy with a Bomb.
Find Adira's Hammer Relic.
Find Adira's Ox Relic.
Capture a picture in Photo Mode.
Discover the Farm.
Learn the Bomb Ability.
Defeat Corrupted Taro.
Find Taro's Lantern Relic.
Find Taro's Food Offering Relic.
Use 5 Rot Actions in a single combat.
Hit 3 Enemies with a single Rot Infused Arrow.
Destroy a Shield Sticks without breaking its shield.
Find Taro's Knife Relic.
Learn the Bow Ability.
Discover the Forest.
Restore a Flower Shrine.
Discover the Village.
Find the first Rot.