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