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