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