Here is the full list of all 44 Diaries of a Spaceport Janitor achievements.
buy river weevils
get a tablet piece from Rhiande
return to the sewerdungeon
transfer the skull curse
finish the game
collect every trading card
get your luck index below -666
get your luck index below -100
incinerate 50 pools of vomit
play 10+ minutes every (real-world) day, 9 days in a row
sell an item for more than 50 credits
get mugged 3x in one day
sell a common spellswatch
peruse the market's wares
stay inside all day
dank....
incinerate one of each tier-one currency
parkour out of the map
drink poison
collect enough blue gems
worship every goddess in the same day
sell a mythic spellswatch
sell an uncommon spellswatch
sell a rare spellswatch
lose 200 MC in one day
trade with Shifty Sallamot
gain 200 MC in one day
complete one week
get a random achievement from the merchant
lose all your achievements
get the first tablet piece
get your luck index over 500
feed 5 dirt to dirt girl
explore every area
eat an item off the ground
incinerate 100 items
get your luck index over 100
stay out late on Theday
complete one day
start the day poor, end it poorer
get cursed