The mod to end them all! SBTW adds boatloads of content and tweaks to make Better Than Wolves even more addicting.
For more information, see SBTW's page on the Better Than Wolves Forum: http://www.sargunster.com/btwforum/viewtopic.php?p=159461#p159461
For development updates and design musings, check out my dev diary: http://www.sargunster.com/btwforum/viewtopic.php?t=10164