Here is the full list of all 35 The Infectious Madness of Doctor Dekker achievements.
Twenty questions - well done!
Ten responses revealed!
One hundred questions asked!
Two hundred and fifty questions asked!
Five hundred questions asked!
One thousand questions asked!
Two thousand questions asked!
Three thousand questions asked!
One hundred responses revealed!
Two hundred and fifty responses revealed!
Five hundred responses revealed!
Seven hundred and fifty responses revealed!
One thousand responses revealed!
Two hours played
Four hours played
Eight hours played
Sixteen hours played
Twenty hours played
Twenty five hours played
Solved in one
Solved in two
Solved in three
Solved in four
Solved in five
Solved in six
Fifty insanity points reached
One hundred insanity points reached
One hundred and fifty insanity points reached
Two hundred insanity points reached
Three hundred insanity points reached
Five hundred insanity points reached
You made Nathan sing a song.
Zero hints, and you absolutely didn't cheat at all.
Excellent hint usage.
It's a bit hinty in here.