Develop a mobile game (Android & iOS)

We are looking for experienced game developer to create/mimic mobile "Claw/Crane" type of game. We want the people to be able to win real prizes too. We could firstly launch Android version and later the iOS (or vice-versa).
Here are a couple of examples:
1. Clawee ( ---------- )
2. Claw Toys ( ---------- )

This job would be divided into 3 tasks:
1. Create the game (if you already have a source code for it - it's fine, you could use it)
2. Connect the game prizes with real products in our Shopify store (when people win the prize we want it to be placed as an order in the Shopify store)
3. We'd like you to work with us and create new content for the game updates bi-weekly (this can be adjusted).

Your ideas and initiatives are definitely welcome.

Upon applying for this job please include if you have any experience related to this exact job and how long you think it would approximately take.