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