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