Steam Cards Helper is a free Chrome extension developed by Rist. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. This extension aims to assist Steam users in calculating the profits from trading and selling Steam trading cards.

One of the main features of Steam Cards Helper is the addition of a button on Steam Store pages that allows users to quickly calculate the potential profits from completing a set of trading cards. Currently, this extension is only available for users in the Taiwan region, and the prices on the Steam Market and Store are displayed in Taiwanese Dollars.

With Steam Cards Helper, users can easily determine whether it is worth investing time and resources into completing a set of trading cards. This extension provides a convenient way to analyze the potential profits and make informed decisions when trading or selling Steam trading cards.