Achievements count - 35
Time to 100% - 30h (except broken achievements)
Buggy achievements - yes (?), some of cumulative can be unlocked in game, but not in steam.
Broken achievements - yes (?), Heroes of Ikonei Island (not triggered in steam after completing quest), Five Stars! (some of regions miss things required to 100% like Construction altar in Dawning Sands).


Avoid playing while Steam community is down. Game won't sync your achievement progress counter in steam and that will lock you from some incremental achievements.

UPD. Game got update on 11th Feb 2025, some achievements got requirements reduced from 1000 to 300. Fixer Upper achievement counter fixed.
Heroes of Ikonei Island achievement won't pop up if you got it in game before update. You should complete the game again to unlock it.
Regions requirements for 5 starts changed a lot since 2024 and I'm not sure if it works now.
Tools of Trade achievement got removed.

Heartland
Discovered Heartland


Storyline. Reach Heartland region.

A New Purpose
Completed C.A.T.'s Quest


Restore C.A.T[earthlock.fandom.com] at Blossom Meadows. Build Workshop at Heartland and upgrade it once. Speak with C.A.T. and give him iron ingot.

Long Distance Relationship
Completed Milas' Quest


After meeting & speaking to Milas, build the Smithy, talk to him in the River Pastures and then in the Smithy.
1. Talk to C.A.T. (the robot), he will tell you he needs an iron bar. Select the item on your inventory and give it him. He'll craft the radio for you, and leave it in his shop (A New Purpose achievement)
2. Upgrade Milas's workshop to the last level and talk to him.
3. Go talk to C.A.T. again and he will hand over the antenna blueprint to you.
4. Take the blueprint to Milas and follow his instructions.

No Pirate Life For Me
Completed Fiolas's Quest


Speak with Fiola in any pirate camp after defeating pirates base. Build Studio at Heartland and speak with Fiola again.

Jailbreaker
Freed 8 trapped creatures


Defeat 4 pirate camps and free 2 trapped creatures in each of them.

Island in Order
Destroyed all pirate bases


Destroy 5 pirate bases (see screenshot above). 5th camp is located in Tangled Mesa (Repair stairs with Bottle O Wind and other resources to access it during main storyline).

The Hero We Deserve
Completed Sariel's Quest


Pick up memory stone after speaking with Sariel in Farmhouse (Build it). Place it in 3 glowing places, interact with memory stone to see cutscenes and return to Sariel.
1st one: Dawning Sands. 2nd: Highlands. 3rd: Enchanted Plateau.

Go to the right of Sariel
Command your Axepecker to destroy the branches around it;
Command your Longhorn to press the button to the right;
Command your Otterlot to jump into the node to the left;
Select "Interact" while looking at the Amri Forge, with your player character.

Earthlock 'n Load
Found all the Earthlock Parts


After Amri Forge quest you will be asked to find 3 Earthlock Parts. Frog boy will give clues for each of them. Find frog boy, then retrieve each Earthlock Part using your pets.
1. Tangled Mesa:
2. Fenland point:
3. Sunless horn:

Suddenly, Pirates!
Got ambushed by Captain Rustbristle


After collecting 3 earthlock parts, return to the Armi forge and interact with it.

A Frogboy Special!
Crafted Bottle O’ Wind!


After getting previous achievement, go down and speak with frog boy. You will get a quest to Craft Bottle O’ Wind.
1. Speak with C.A.T and give him 5 glass. Pick up the bottle
2. Speak with Fiola. Give her special bottle and blue dye. Pick up the very special Bottle
3. Speak with Milas. Craft dragon kite (upgrade smithy to get recipy) and combine it with Bottle, place it outside then pick it up (achievement here)
4. Talk with frog boy in froglet grove (where you can trade with him, to the right from Shrine).

...and Stay Away!
Blew away the pirates


Restore stairs with Bottle O’ Wind and other resources in Tangled Mesa to discover Crescent Island. Pick up bottle and proceed to the last pirate base. After defeating last pirate base you will get Island in Order and ...and Stay Away! after cutscene (walk to the ship).

Heroes of Ikonei Island
Restored the magical cloud cover


Summon otterlot and fish Earthlock near boat.
Return to the Sanctuary and walk to altar.
Achievement popped in game, but not in steam, this one broken as well.

Taking Shelter
Got all Dwellings to level 2


Build and upgrade each Dwelling (5 total).

Beastmaster
Activated all Beastmaster Statues


Activate 5 Beastmaster Statues (Use frog on them). Each Beastmaster statue tells you how to tame a creature.

Scholar
Activated all Scholar Statues


Activate 14 Scholar Statues.

Frog Catcher
Activated all the statues


Activate 5 Beastmaster Statues and 14 Scholar Statues.

Advisor
Activated all Advisor Statues


Activate 15 Advisor Statues. In game achievement is awarded for 15 Advisor Statues. May be broken. Fixed in steam on 27th of April, launch the game to get it if you achieved it in game before.

Shrining Bright
Activated all the Shrines


Activate 8 Shrines. After activation you can fast travel there.

A Better World
Destroyed all Scrap Piles


Destroy 79 Scrap Piles with Longhorn. Relaunch the game to respawn Scrap Piles in some regions (F.e. Sunless Thorn).

Five Stars!
Got 100% rating in all regions


1. Activate all Shrines and frog statues.
2. Free all animals.
3. Construct all bridges and buildings.
4. Destroy each pile of grass and rocks.
5. Place requested amount of decorations.

There is 15 regions total, you need 14 for the achievement. Repair boat on final pirate base and use it to visit Crescent Island.

Fixer Upper
Completed all the Construction Altars


Completed all 59 Construction Altars. Most likely broken. There is no 59 Construction Altars in game.

Mechanophobia
Destroyed All Monster Spawners


Destroy all 13 Monster Spawners with Axepecker. Some of them requires 3 stars (max) Axepecker.

Progress can be tracked in game on achievements tab.

Scavenger
Picked up 300 items


Pickup any 300 items.

Monster Hunter
Defeated 300 Monsters


Monsters respawn each night, but can be found during daytime too.

Mining Your Business
Broke 300 rocks


Break 300 rocks with Longhorn. Good spawn point is Highlands and to the north from Froglet Grove Shrine.

Decorator
Placed down 300 items


Place 25 decorations (pet stones are small and cheap), pick up, repeat again and again.

Felling Fine
Chopped something down 300 times


Chop down 300 trees using hatchet or axepecker.

Effishient
Fished up 300 items


Get 300 items from Fishing with fishing rod (Can be bought in shop) or otterlot. Onee fishing spot gives 1-6 items.

Digging It
Dug up 300 items


Dug up 300 items with shovel (Can be bought in shop) or stormdog. Digging special spots gives multiple spots. Digging ground anywhere else gives 1-2 items.

Busy Bibi
Pollinated 300 plants


Pollinate 300 plants with bibi or Pollinating bags. 2 and 3 stars bibi has ability to pollinate plants in larger area. Collect yellow lights on flowers to restore pollinate charges.

Gardener of Ikonei
Harvested 300 fruits


Harvest 300 fruits (Flowers and/or farmable plants).

Part of the Herd
Had all companions following at the same time


Tame and summon all 5 different creatures.

Valor
Unlocked all other achievements


Unlock all 35 other achievements.

Fashionista
Equipped three pieces of clothing in different slots


Craft 3 three pieces of clothing and Equip it in different slots. You will get clothing recipies by getting different achievements. Pebbleput set doesn't require rare resources and easy to unlock.

Master Engineer
Obtained one of each weapon


1. Clothing Crusher (recipe is unlocked by purchasing it from shop)
2. Copper Claymore (recipe is unlocked by purchasing it from shop) or find it in River Pastures, close to Milas.
3. Keen Candelabra (recipe is unlocked by purchasing it from shop)
4. Leaf Blade (recipe is unlocked during tutorial)
5. Mashing Mannequin (recipe is unlocked by purchasing it from shop)
6. Seashell Scimitar (recipe is unlocked by purchasing it from shop)
7. Spud Club (recipe is unlocked by purchasing it from shop)
8. Umbranium Greatsword (recipe is unlocked by purchasing it from Milas) or find it in Fenland Point.
9. Umbranium Greatclub (recipe is unlocked by purchasing it from Milas)

Dyes recipies[earthlock.fandom.com]
All items wiki pages[earthlock.fandom.com]
Put Fishbone in the cutter to get Needle (Fandom page is wrong)