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