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