Here is the full list of all 47 Grim Fandango Remastered achievements. It takes around 8-10 hours to unlock all of the achievements on Windows.
Meet the mechanics.
See Bruno on his way.
Spend three years in the Eighth Underwold.
Make the angelitos cry.
Spend two years in the Eighth Underworld.
Try to convince Verago to help you out.
Talk to the worker bees about playing the game.
Sample the Marillo de Oro.
Try to get a passport from Chowchilla Charlie.
Ask Lupe about her organizational system.
Spend a year in the Eighth Underworld.
Ask Velasco about his eye patch.
Check your job qualifications with Celso.
Receive a message from Eva.
Try to dig up some dirt on Meche.
Talk to Brennis about how he got to the machine.
Get the balloon twister to pop a balloon.
Play the whole game with tank controls. Tim demanded this achievement.
Use the hole punch.
Learn of a nefarious plot.
Try to guess Domino's password a few times.
Try to intimidate the pigeons.
Talk to Glottis about leaving.
Look at the moon.
Have Olivia recite one of your poems.
Listen to Carla's whole story.
Talk to Membrillo about why he's still here.
Visit with Maximino.
Try to convince Aitor to take you down to the wine cellar.
Have Glottis sing you the rusty anchor song.
Chant with the bees.
Talk to Chepito about how long he's been down here.
Try to explain to Meche.
Get Domino to explain the racket to you.
Talk to Chepito about his bartering tactics.
Try to beat Domino in a fair fight.
See Chepito on his way.
Hold to your commitments.
Revisit the place where you left Lola.
Crack a joke.
Play with the radio.
Spend four years in the Eighth Underworld.
Talk to Eva about how she got stuck here.
Scare the living a few times.
Talk to Glottis about cravings.
Ask Glottis about the tree farm.
Catch up on how the pigeons are doing.