Here is the full list of all 84 OMORI achievements. It takes around 80-100 hours to unlock all of the achievements on Windows.
Unlock all achievements. Thank you for playing OMORI.
Listen to MR. SCARETHROW's rant.
Defeat the PET ROCK champion.
Defeat the HOOLIGANS with PEPPER SPRAY.
Defeat the RECYCLEPATH.
Brush your teeth every day.
Commission all of ROCOCO's art.
Commission ROCOCO.
Feed the STRAY CAT every day and sunset.
Defeat PLUTO and THE EARTH.
Take the KEEPER OF THE CASTLE's power.
Trade CLAMS for CLEMS.
Quit in the middle of a part-time job.
Gain BREAD using BREAD SLICE.
Complete all part-time jobs once.
Defeat ???.
Defeat ROBOHEART.
Defeat MUTANTHEART.
Insert every song into GINO'S JUKEBOX.
Complete the math worksheet correctly.
Reach the other ending.
Read all the tombstones in the... dev room...
Defeat every SOMETHING at the bottom of the LOST LIBRARY.
Enter code: haveadollariguess at www.omocat-shop.com for $1.00 off.
Take $20.00 from KEL's wardrobe.
Get the LOL SWORD.
Complete your TO-DO LIST.
Throw away something.
Defeat SPACE EX-HUSBAND.
Let the plastic fish finish its song.
Don't high-five KEL.
Fly the BUTT CERTIFICATE in CATTAIL FIELD.
Choose the SUMMER MOLE.
Choose the SPRING MOLE.
Receive all FLOWERS in the hospital.
Defeat PERFECTHEART.
Beat the BOSS RUSH.
Defeat 100 SQUIZZARDS.
Defeat UNBREAD TWINS.
Complete the grammar worksheet correctly.
Go to SEAN and KAREN's housewarming party.
Hold 99 TOFU.
Complete the FOE FACTS! journal.
Complete ORANGE JOE's quest.
Have a ghost party.
Pet all the creatures in MARINA's sector in HUMPHREY.
Ruin Christmas.
Defeat the CHICKEN? at the top of DINO'S DIG.
Commission all of GATOR GUY's statues.
Battle the "bees".
Get a perfect score delivering PIZZA.
Give FLOWERS to MARI.
Choose the FALL MOLE.
Watch all movies in SWEETHEART'S "throne room".
Defeat 100 BUNNIES.
Visit all mirrors.
Look through all telescopes.
Recover at all of MARI's picnics.
Get all rewards from the RECYCLING MACHINE.
Reach the bad ending.
Reach the good ending.
High-five KEL three times.
Defeat KITE KID.
Defeat HUMPHREY.
Defeat SLIME GIRLS.
RELEASE ENERGY on your foes.
Defeat PLUTO (EXPANDED).
Defeat MR. JAWSUM.
Turn the valve to the right in RAIN TOWN.
Defeat SWEETHEART.
Kill the first SOUS CHEF.
Perfectly train the SPROUT MOLE choir.
Choose the WINTER MOLE.
Go to sleep after a long day.
High-five KEL.
Lose to KIM and VANCE.
Wake up in the morning.
Make your way and talk to LONE MOLE.
Pet a dog.
Defeat SPACE EX-BOYFRIEND.
Get the FLOWER CROWN from BASIL.
Water a plant back to life in BASIL's garden.
Defeat THE EARTH.
Defeat DOWNLOAD WINDOW.