Here is the full list of all 70 Kynseed achievements.
Have a baby / adopt
Witness Tickling Tom Hookfingers scaring a villager
Clear the story task Burying The Past
Get married
Clear the story task Fool Me Twice
Clear Midwood after traveling as deep as you can
Win one of the top 3 prizes in Squeal or No Squeal
Specialise your shop
Gift a villager all of their liked items
Win a village competition
Witness a Lucky Lucky Star
Receive a 5 star boon from a Goddess
Pick a flower during a Flower Bloom
Mine some ore during an Ore Rush
Travel to Evergreen
Visit one of the secret markets
Clear the story task The Encounter
Clear the story task The Unwell
Clear Simplewood after traveling as deep as you can
Clear the story task A Missing Child
Clear Midwood
Defeat an elite monster
Clear the story task Murder Most Fowl
Forge a 5 star item
Clear Simplewood
Purchase a shop
Encourage a villager to Like you
Cook a 5 star meal
Travel to Tir Na Nog
Take an egg from a Chicken Migration
Complete the Prologue
Purchase your first Fairweather item
Travel to Briar
Become Friendly with a villager
Craft your first cure
Cook your first meal
Make an offering to the Goddesses
Win an auction
Form a bond of Love with a villager
Gift a villager one of their liked items
Forge your first item
Perform a favour or notice board task for an NPC
Learn a skill from a master
Discover all the map stones at a single location
Craft your first 5 star cure
Unlock all the perks for a shop
Pass on the Kynseed
Give an NPC a disliked item for their birthday
Clear Toughwood
Clear Toughwood after traveling as deep as you can
Discover all the map stones at every location
Travel to Voide
Discover all the date spots
Learn all the skills from a master
Learn all the skills from all the masters
Clear the story task Third Time Lucky
Clear the story task Charming The Wrym
Clear the story task The Jabberwock
Win the top prize on Marble Toss
Rejuvenate a beloved animal
Purchase an item from the Ghost Trader
Attend the Summertide event for a second time
Take part in a dance
Plant 3 magic beans
Receive an item from a ghost during the Spirit Walk
Strike Fred Barleycorn
Fight during a Blood Moon
Fight during an Eclipse
Catch a fish during a Fish Frenzy
Pick a mushroom during a Mushroom Sporing