Here is the full list of all 20 Doodle God Blitz HD (Windows) achievements worth 200 gamerscore.
6 elements created
10 groups created
Life created
Human created
Episode One passed
Episode Two passed
Episode Three passed
Episode Four passed
Episode One passed without hints
All Bad things created
All reactions revealed
All drinks created
Save the Princess quest passed
Element created 3 or more times
Similar elements reacted
All reactions with Philosophers' stone discovered
Run, Santa, run quest completed
Sins vs. Virtues quest completed
Greatest Inventions quest completed
Survivor quest completed