What is Reddit's opinion of Math Shooting?

From 3.5 billion Reddit comments

I have only made one game (plus several "tech experiments"). So I am quite a beginner. It's a pretty simple game, a math / tower defense game.

You can take a look at it's simplicity from the screenshots in the google play store (not trying to self-promote here...).

I think that more importantly than choosing "how simple" your first game is going to be, is to make sure you do ship it, just to create the habit on working on your game until the end instead of quitting half-way.