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