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