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