No one will be able to answer that question for you. That is too variable on the individual.
I can say:
- Unity is easy to use. The only other game engine that caters to new users as well is Unreal (which has nothing to do with playmaker, I'm just providing it as a reference). I cannot recommend one over the other: for new users they're equal.
- PlayMaker is easier than learning a programming language.
- You can program complete games using Unity+PlayMaker.
So I could say that Unity+PlayMaker, or Unreal+Blueprints, are the "quickest" way to produce a complete project. You might have faster results with something like GameMaker, which can also create a "Tycoon" style game, but other than those options there is no faster way for learning -> creating -> finishing.
I have made my living off of Unity+Playmaker for 10 years.
I have 20 years of experience in professional game development and have used dozens of game engines, so the experience for a new developer might differ a bit, but that should give you an understanding of whats available to you.