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