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