Here is the full list of all 40 Sakuna: Of Rice and Ruin achievements.
Swing behind an enemy with the divine raiment 100 times.
Complete the game.
Explore every last inch of Hinoe Island.
Deal over 10,000 damage with one attack.
Crash 5 enemies together in one fell swoop.
Achieve a crash combo of 3.
Achieve a crash combo of 5.
Swing behind an enemy during an aerial combo twice.
Debuff an already-debuffed enemy with a raiment skill.
Successfully parry an enemy attack 30 times.
Become fully proficient in one fighting skill.
Harvest over 500 rice plants at once.
Create white rice with the mortar and pestle.
Create fertilizer by throwing in over 100 materials.
Achieve an above-standard yield when harvesting.
Achieve an above-standard taste, stickiness, and hardness when harvesting.
Achieve an above-standard aesthetic when harvesting.
Achieve an above-standard aroma when harvesting.
Raise your rice level to 50.
Pray for every type of weather.
Collect all combat scrolls.
Collect all agricultural scrolls.
Release 30 hidden powers from equipment.
Create 20 kinds of tools at the forge.
Create 10 kinds of garments or headgear at the loom.
Gather from every gathering spot on the island.
Eat 50 different types of food.
Have a dinner comprised of 5 rice dishes.
Have a dinner comprised of 5 desserts.
Have a dinner comprised of 5 types of alcohol.
Attempt to have a dinner comprised entirely of water.
Have a dinner comprised of all 5 types of courses.
Practice in the training hall 10 times.
Trade 1,000 ears with the capital.
Gather every animal at your home.
Rest on the porch in each of the four seasons.
Climb to the highest roof of the tallest house.
Talk to someone while carrying the manure pail.
Clear the aphid invasion.
Clear the lowest floor of the Amagaeshi Shrine.