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