Here is the full list of all 89 Outpath achievements.
Integer limit.
Break a big rock in one blow without tools.
Eat a pizza, a hamburger and an ice cream.
Improve all skills to the maximum level.
Eat a Poisoned Apple.
Build 750 builds.
Feed your companion.
Eat a cake.
Have all potion effects at the same time.
Drink 1 potion.
Oops.
Too much height.
Replace an island.
Craft a holy artifact.
Break a tomb.
Sort items in a chest using a Stacker.
Electrify a Vacuum
Change song on the radio.
Eat a Seaweed.
Remove color from a build.
Change the color of a build.
Rotate a block.
Read the 8 letters.
Change the material of a build to brick.
Sleep having in your inventory The Circle.
Craft The Circle
Convert a Star Fragment into a Dark Star Fragment.
Craft 10000 items.
Get the circle part I.
Convert a Quadstone prism.
Improve a skill with 7 points to the maximum.
Learn 50 skills.
Touch 10 rings without touching the ground.
Don't use collectors until you complete the game.
Break a star.
Change the name of a Teleporter.
Build 150 builds.
Build 300 builds.
Activate an island.
Reset the market for a value greater than 10000.
Break a massive mushroom.
Craft 5000 items.
Have amber, emerald, sapphire and ruby in your inventory.
Gather 300 living souls.
Plant a seed.
ransform 15 creatures into bones.
Build 50 builds.
Build an Amplifier.
Kill with the scythe for the first time.
Build an Advanced Research Table.
Destroy 10000 resources.
Build a Mining Post.
Kill 250 creatures by hand.
Craft 1000 items.
Milk a cow.
Research all buildings on a research table.
Learn 25 skills.
Reach 1000000 credits.
Play for 100 in-game days.
Destroy 5000 resources.
Reach 100000 credits.
Collect items from a collector with a full inventory.
Build a Breaker.
Kill 150 creatures by hand.
Destroy 2500 resources.
Get 5000 credits in one go.
Kill 75 creatures by hand.
Make a synergy.
Reach 10000 credits.
Kill a slime.
Kill a turtle after having stolen its shell.
Steal a turtle shell.
Read a letter.
Craft 100 items.
Kill 25 creatures by hand.
Visit your personal cave.
Speed up a craft.
Pat a chicken.
Destroy 5 shinies.
Learn 8 skills.
Expand an island to the maximum.
Buy your first monolith bundle.
Destroy 500 resources.
Sleep during the day.
Equip a tool for the first time.
Go swim.
Learn your first skill.
Grow your island.
Punch a tree until wood pops out.