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