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