As an AI language model, I can help you with the initial setup for creating a simple game in a single HTML file, containing JavaScript enclosed in script tags. However, creating a game like GTA 5, which is a complex and sophisticated game, is beyond the scope of a single HTML file. It requires advanced game development technologies, extensive programming knowledge, and typically involves a team of skilled developers.
Nonetheless, I can provide you with a basic example of a game that you can play on a smartphone using pictograms. Please note that this will be a very rudimentary game, but it will serve as a starting point for your game development journey.
Here's a simple game example using JavaScript:
In this simple game, you can touch and drag within the canvas to move a rectangle representing the player. The canvas size is 400x400 pixels, and the player is represented by a 50x50 rectangle. This is an extremely basic example, but it demonstrates the core concepts of game development using JavaScript and HTML.
Please note that to create a game like GTA 5 or any advanced game, you would need to utilize game engines, libraries, and more complex game development techniques.