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