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.
All reactions revealed
Survivor quest completed
Save the Princess quest passed
Sins vs. Virtues quest completed
Greatest Inventions quest completed
Run, Santa, run quest completed
Episode One passed without hints
All episodes passed without hints
All reactions with Philosophers' stone discovered
Episode Four passed
All Bad things created
Episode Three passed
Alle drankjes aangemaakt
Games created
Episode Two passed
Episode One passed
Human created
Similar elements reacted
10 groups created
6 elements created
Life created
Element created 3 or more times