how long can you survive

Hello I want do a game application for android and Apple also it would be great if the game could play on Xbox and Playstation. My idea was about a game that a group of people will create together an area to defense the zombies that will come after a big virus that made all the people zombies but they survived and now they have to find their food while zombies will coming and if they want to survive they must make a good partnership and help each other. Zombies will coming and days will count down until it is over. Every week an airplane will come with supplies. It must be an area with a fence that will protect the house at first it will be one bet and it could be upgrade and become a house for 5 people the server could be for 5 people maximum and if they want somebody to help them they should buy him and he must be expensive. They will share the same money and diamonds. The area will also have a place (everything could be upgraded ) to make their vegetables. They will be able to eat meat after the first month and they will have to pay it by a special market that will also have tools for more items That they will need. Also someone must be the leader who will take the most important decisions, give rules and ranks. A market and a shop In game must be included. This shop will sell some helpers and workers they will be paid with coins or with diamonds. The survivors will make coins with trading their products with other not real players. Also they will find diamonds with completing daily challenges or missions. Every day the will fight with the zombies and also the zombies will become better every week. The survivors will put some guns perimeter. They will also have a generator to make things and if they want to do more they will have to upgrade this generator because it will have a limit per upgrade. Also they will have health and they will need water so they should be a good team if they want to survive lot of days and finish the story. After lot of days they will have to rebuild a hospital and cure the zombies and make them again people. Also the program must be able to take advertisies and also it will have some bonus with an add-small video. They will be able to build things with wood light fire and make something to make their water able to drinκ it. They will have three bars on top right that will count how many materials they have, gold and diamonds. On top left they will have their health and how much water they want this will be per player. They could also able to make the rain water water to drink. please tell how much does it cost and if it is possible . this is only the start.