Each year, friends, partners and sponsors of the Global Game Jam offer an ever growing list of freebies. Want to try out a Corona SDK Indie Subscription free for 3 Months? $500 worth of assets and services with Mixamo? A free GameMaker: Studio license or free 30 day license to Articy:draft? 

Check out these promotions and a lot more here, http://globalgamejam.org/content/2013-promotions