I want to make a 3d game using Unity

Job ID: 32240326

Budget: $30 – $250 USD

Hello freelancer.
I want to make a game like this:
https://play.google.com/store/apps/details?id=com.game.missioncrit

I want you to make exactly same feeling of gameplay and same color style.

Please let me know how long do you need to make a demo? I will provide some assets for you to make the demo file.