You can browse applications by category and sort them in different ways.
On the Play Store homepage, tap a category on the screen.
Swipe horizontally across the screen. The subcategories bar is displayed near the top of the screen to identify the content. Scroll through the choices, then tap the one you want to explore.
Tap the right or left side of the subcategories bar to scroll the screen.
Tap an application to open its details screen.