Sure! Here's an example of a gambling game implemented as a single HTML file using JavaScript. Please note that this is a simplified version for demonstration purposes only and does not involve real money transactions. It is purely for entertainment purposes.
In this game, you start with 50 free spins upon registration. If you choose to deposit £10, your balance increases to £1000. Each spin will deduct £10 from your balance, but landing a jackpot (5% chance) will increase your balance by £1000. The game continues until you run out of spins or choose to stop playing. The current balance and spins remaining will be displayed after each spin.