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