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