Over the years, Dungeons of Dredmor has had several achievements that were unobtainable. The Deadeye skill tree mastery achievement and meet the developers achievements used to exist, but were eventually removed since Deadeye was a cut skill, and the developers went under. Currently, there are two achievements considered broken, Doctor Strangelove and You Used All The Glue on Purpose. Doctor Strangelove can be obtained with enough brute force(there's a guide for this achievements). As for You Used All The Glue on Purpose, this achievement has been broken and fixed over the years, but in the current state it will never progress since the skill that repaired wands was removed from the Wand Lore tree, making it permanently broken and the rarest achievement ingame.

While broken, people have figured out a way to unlock the achievement.

1) Go to the Steam workshop and subscribe to the Gluemancy mod
https://steamproxy.com/sharedfiles/filedetails/?id=394151682

2)Launch the game, and in the launcher, select mods and check Gluemancy to use it. Start game once it's checked.

3)Start a new character and select the Wand Lore and Gluemancy skills.

4)Level up once and put your first point into Gluemancy.

5)The achievement will automatically unlock.