otlet

plugin that adds a widget with a group of Steam.

Steam Community Group Widget

Plugin that adds a widget with a group of steam

Anthony Skelton

This plugin takes your Steam Community Profile Name or 64bit ID and returns your steam profile name, and all of your achievements for Team Fortress 2. It displays your achievements in order from your most recently earned.
A widget is available to display your achievements with the icon, as well as an option for tool-tips to display the name and description of the achievement.

WordPress Steam Achievement Plugin

This is the current version of a wordpress plugin that adds a widget to display your most recent Team Fortress 2 achievements.

Steam Community Group Widget vs WordPress Steam Achievement Plugin