Wordpress Plugin / Database Management

Hi, Am currently creating a gambling website using WordPress, I need some advice/plugin that can meet my requirement. 1. I need a sign up member for player to register with their name, email, phone number, game they would like to play, money to put in etc. (The games are not play thru my website, my website is just for registration and handle some transaction). The backend user/staff will create new username and password for player to login the game (casino server). 2. I need all the above data to store in backend office. 3. Must able to create user login for user (meaning will have more than 1 user aka staff to handle those database). 4. The database is editable and also have math equation function. Example, player would like to deposit $100 and I would like to give $30 as bonus/promotion. Therefore I need a column/field to key in the $30, and I need a column to show P/L, aka $100-$30 = profit $70 as example. If the client would like to withdraw $500, I need a withdraw column to key in and the database sheet will do the calculation, $100 - $30 - $500 = (lost $430) -$40. Hope I have describe clearly above.