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