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