Here is the full list of all 22 Doodle God achievements. It takes around 4-5 hours to unlock all of the achievements on Windows.
Episode Two passed
Episode Three passed
Games created
Alle drankjes aangemaakt
Survivor quest completed
Save the Princess quest passed
Sins vs. Virtues quest completed
Run, Santa, run quest completed
6 elements created
10 groups created
Life created
Human created
Episode One passed
Element created 3 or more times
Similar elements reacted
Episode Four passed
Episode One passed without hints
All Bad things created
All episodes passed without hints
Greatest Inventions quest completed
All reactions revealed
All reactions with Philosophers' stone discovered