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