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