Following this year’s Game Developers Conference, GDC Vault, a service that hosts a variety of audio, video, and PowerPoint presentations of previous Game Developers Conferences, has just added free video content from GDC 2012 that just happened last month:

Following the debut of numerous GDC 2012 videos earlier this month, the GDC Vault service has debuted a trio of free video lectures from last March’s show, featuring talks from the legendary Civilization creator Sid Meier, iWin VP Laralyn McWilliams on the importance of metrics, and White House analyst Constance Steinkuehler Squire.

These free videos join a host of other free and notable lectures already available on GDC Vault, including the recent release of classic game postmortems (Gauntlet, Harvest Moon and more) and track keynotes (from Blizzard, Plants Vs. Zombies creator George Fan, and more) from GDC 2012.

The following lectures provide a varied sample of the show’s informative and inspiring content, covering in-depth design philosophies, tricks for data analysis, and even how the government is impacting games as a medium.

While members-only content is available with an All-Access Pass purchase or a Studio Subscription, everyone has access to the Vault Free section, which you can get to by clicking here.