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