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