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