Here is the full list of all 103 Forager achievements. It takes around 60-80 hours to unlock all of the achievements on Windows.
Collect every accessory
Find every secret room
Find 3 secret rooms
Build 200 structures
Build on top of every water tile
Reach Void level 20
Have 1,000,000 coins
Complete the museum Farming bundle
Complete every NPC quest
Help the Old Man
Obtain a Nuclear tier item
Light all torches in the Skull Maze
Have 100,000 coins
Upgrade a structure to use nuclear power
Get a Cosmic gear item
Defeat the Slime King
Collect every artifact
Get a Void gear item
Water 100 seeds
Plant 100 seeds
Bottle 100 critters
Complete a dungeon without taking damage
Eat a gem
Defeat the Toxic Guardian
Solve the Skull Galaxy puzzle
Solve the Frozen Galaxy puzzle
Solve the Ancient Galaxy puzzle
Solve the Fire Galaxy puzzle
Learn every skill
Die 10 times
Defeat the Dark Beet
Dig up an archaeology item
Reach Void level 10
Reach Void level 5
Complete the Crystal Cave
Defeat the Skeleton King
Obtain a sigil
Activate a droid
Have 3 bombs active at once
Buy every land
Perform a challenging blood ritual
Use a bottled rainbow
Craft 10,000 items
Kill a magic deer
Help the Fox
Help the Wizard
Complete the museum Building bundle
Complete the Fire Temple
Kill all giant beets
Talk to every NPC
Kill an enemy with a single arrow shot
Complete the Skull Maze
Mine the giant crystal
Open 20 big treasure chests
Help the Ghost
Complete the museum Cooking bundle
Fail miserably at a trivia minigame
Help the Engineer
Help the Goblin
Have 10 max health
Win the ice wizard challenge
Complete the Ancient Tomb
Kill 3 enemies or more with a single sword slash
Complete the museum Mining bundle
Complete the museum Trapping bundle
Complete the museum Alchemy bundle
Complete the museum Foraging bundle
Have 100 poop in your inventory
Destroy 100 gravestones
Dodge 10 attacks
Have 5,000 items in your inventory
Help the Princess
Dig up 50 items
Build 20 structures
Help the Druid
Shoot 100 arrows
Open a skull chest
Own 10 lands and 5,000 coins
Win the jackpot at a slot machine
Catch 50 fish
Gather royal steel or royal clothing
Help the Fairy Queen
Craft 2,000 coins
Play the game for 3 hours
Craft 500 furnace items
Dodge a lethal attack
Have 100 jelly in your inventory
Kill 100 enemies
Have one of each gem in your inventory
Have 1,000 items in your inventory
Own 5 lands
Complete the museum Archaeology bundle
Complete every museum bundle
Open all big treasure chests
Collect every tool and weapon
Collect every seal
Achieve every other feat
Reach Void level 30
Make 1 million coins using banks
Upgrade all rods
Have 1,000,000,000 coins
Have 1,000,000,000,000 coins
Own 100 nuclear structures at once