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