Here is the full list of all 46 The Multidimensional Underwear Drawer achievements.
You finished the game with a negative lovemeter.
You reached Tymoteusz' good end.
You plotted against Einar.
You reached Tymoteusz' bad end.
You finished Tymoteusz' route.
You completed the prologue.
You died at the prologue.
You died 1 time.
You have seen every death scene. Congratulations!
You got every achievement.
You died in all possible ways at Tymoteusz' route.
You reached all events on Tymoteusz' route.
You finished the game with a maximum lovemeter.
You kept Tymoteusz happy with food.
You reached Furio's bad end.
You reached Furio's good end.
You died in all possible ways at Furio's route.
You reached all events at Furio's route.
You finished Furio's route with a maximum lovemeter.
You reached Furio's good end with semi-good decisions.
You finished Furio's route.
You reached Blanche's bad end.
You reached Blanche's good end.
You died in all possible ways at Blanche's route.
You reached all events at Blanche's route.
You finished Blanche's route with a maximum lovemeter.
Decline Blanche's presents.
Corner Blanche!
You finished Blanche's route.
You reached Einar's bad end.
You reached Einar's good end.
You died in all possible ways at Einar's route.
You reached all events at Einar's route.
You finished Einar's route with a maximum lovemeter.
You reached barely Einar's good end.
You mended Einar at Einar's route.
You plotted against Tymoteusz.
You finished Einar's route.
You reached one of Jan's endings.
You reached all events at Jan's route.
You finished Jan's route with a maximum lovemeter.
You overcame all problems with Jan.
You finished Jan's route.