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