Resources for people wanting to get into games!
Engines: Torque 3D http://torque3d.org/ Adventure Game Studio http://www.adventuregamestudio.co.uk/ Cocos2D http://www.cocos2d.org/
Tools: GitHub for Unity3D https://github.com/github-beta/unity-preview PyGame http://www.pygame.org/
Some Games that are Open Source: Cart Life https://indiegamestand.com/free-games/2199/cart-life/ Lucas Pope Archive http://dukope.com/ Jason Rohrer Archive http://hcsoftware.sourceforge.net/jason-rohrer/ NetHack http://www.nethack.org/ Katawa Shoujo http://www.katawa-shoujo.com/
Wikipedia's List of Open Source Games here: https://en.wikipedia.org/wiki/List_of_open-source_video_games
Open Source Graphics/Assets: TBD