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