Ryan Imel

Achievements for BuddyPress is fantastic if you want to integrate badges into a BuddyPress-driven social environment. CubePoints works if you want to award points to your users that are redeemable for things. This plugin focuses on a different kind of situation: awarding badges manually by admin approval, and automatically when specific events are triggered — and to do so as simply as possible.
Simple Badges provides two ways to award badges:
<ol>
<li>manually by an admin granting the badge to a user, and</li>
<li>automatically based on a single condition a user meets.</li>
</ol>
Note: Only the manual badges are functional in this alpha release. Automatic badges are coming in the first public release.
Badges can be managed under Tools > Badges, the same way you add and edit posts and pages. Set badge icons by assigning a featured image, and control whether a badge is hidden to users by default or whether the badge is manually or automatically awarded.
Only a handful of automatic badge conditions will be available with the first public release, though the goal is to have an extensible list that any plugin can support and add conditions for. More on this, along with documentation for it, real soon!
<h4>Kudos</h4>
Thanks to Andrew Norcross and his (Quick Vote)[https://github.com/norcross/quick-vote] plugin for inspiring me to dive in and improve my plugin coding standards a bit.

Simple Badges

Create and award badges to your users manually, or based on what they accomplish.

Irene Berna

Ruben Garcia

GamiPress

tsunoa

Gamify your <a href="https://wordpress.org/plugins/wp-postratings/" title="WP PostRatings" rel="ugc">WP PostRatings</a> ratings thanks to the powerful gamification plugin, <a href="https://wordpress.org/plugins/gamipress/" title="GamiPress" rel="ugc">GamiPress</a>!
This plugin automatically connects GamiPress with WP PostRatings adding new activity events.
<h4>New Events</h4>
<ul>
<li>Rate a post: When a user rates a post</li>
<li>Rate a specific post: When a user rates a specific post</li>
<li>Get a rate on a post: When an author gets a rate on a post</li>
<li>
Get a rate on a specific post: When an author gets a rate on a specific post
</li>
<li>
Rate a post with a specific rating: When a user rates a post with a specific rating
</li>
<li>Rate a specific post with a specific rating: When a user rates a specific post with a specific rating</li>
<li>Get a rate on a post with a specific rating: When an author gets a rate on a post with a specific rating</li>
<li>
Get a rate on a specific post with a specific rating: When an author gets a rate on a specific post with a specific rating
</li>
<li>
Rate a post with a minimum rating: When a user rates a post with a minimum rating
</li>
<li>Rate a specific post with a minimum rating: When a user rates a specific post with a minimum rating</li>
<li>Get a rate on a post with a minimum rating: When an author gets a rate on a post with a minimum rating</li>
<li>Get a rate on a specific post with a minimum rating: When an author gets a rate on a specific post with a minimum rating</li>
</ul>

Simple Badges vs GamiPress – WP PostRatings integration