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