Add different API's and game mechanics to website (BACK-END)

Hey. I need a website made that will have multiply API's and different mechanics. Please look at both files included. WEB DESIGN NOT NEEDED ONLY BACK-END. REQUIREMENTS: Javascript, CSS, HTML, PHP and MYSQL knowledge. Worked with G2A api before. Worked with Steam api and steam trading bots before. It will be a website based around the game CSGO. You will be able to play to different games on the website, Case opening and Coin Flip. Case opening: Opening a case will cost X amount of money and you will have a chance to get from 15-20 different types of skins. The chance of you getting a skin depends on the value of it. When you have gotten a skin, if the skin is above X amount of money it will need to be manually sent to there steam account else the process will be automated. When a user is opening a case it will look like this: [login to view URL] (need to be made) Coin Flip: You will have a 50/50 chance of getting a skin. If you get a skin and the skin is above X amount of money it will be handled manually else it will be automated. When a user plays the game it will be an animation with a coin flip. Money: Users will have there own balance on the website and they will be able to add money thru G2A Pay. See the included file "[login to view URL]" Steam trade bots: Skin will be automated sent to there account if its belove X amount of money Admin panel: I want a admin panel where i can monitor and control: - See users that are online. (Account information and if they have added there trade link and email) - All users that have joined the website - Ban users. - Recent winnings and all time winnings. - See if winnings has been sent to users account. - Manually handle trades that are above X amount of money. - Chance prices on cases and coin flip - Put the website into "Maintenance mode" so only the admin panel will be available and users cant use the site.