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