Honestly, I have no idea how to play this game, even after reading the instructions.
First of all, the control scheme is designed for mobile devices, but the game is built in Unity's WebGL build settings, which no longer support mobile devices. Second, your game seems to suffer from performance issues of the WebGL platform. When I play the game, the frame rate was probably just 6 fps. For such a costly game like yours, you should also provide downloadable versions.
If you can fix these issues, I'll come back and give this game a proper review.