BadgeStack requires that you first install and activate the free BadgeOS plugin plugin.

BadgeOS turns your WordPress site into an achievement and badging system.

The BadgeStack add-on to BadgeOS automatically creates all the achievement types and pages needed to quickly set up your very own badging system. Levels, Quest Badges, Quests and Community Badges are all ready upon activating the plugin, as are pages with shortcodes for each achievement type. BadgeStack also includes a set of sample achievements and badges. A great way to bring some instant organization to your site and to get started with badging. This add-on is made possible in part due to the generous support of HASTAC, through the DML Badging Competition.

Badges are Mozilla OBI compatible and sharable via Credly, the free web service for recognizing and displaying lifelong achievement.