NARR8 is available for free from the Windows App Store.
Main features of NARR8 for Windows 8 and 8.1:
When you run the NARR8 app on your device, you will be taken to the below screen. This screen is the main interface of the app which allows you to choose the comic that you wish to read.
As you can see, you can access the tiles of various comics which are available in the app by clicking on those tiles. Once you have clicked on the tile of a particular comic, you will be taken to the reader interface of that particular comic which is shown in the screenshot below.
You can switch between the pages by either clicking on the arrow buttons on either side at the very bottom of each page, or you can choose to press the right mouse button which fires up the control bar from the bottom of the screen allowing you to switch pages by merely clicking on the preview of a page.
Case in point, this basically winds up the main features of NARR8 for Windows 8 and 8.1.
Other similar apps:
NARR8 makes for a great comic reader app which can be downloaded for free on your device. You can get it from the link below.