A great starting point (especially if you've never made a game before is Sortingh.at, a site that comprehensively helps get you started based on what you think you might want to make.

I also have a limited number of keys for AppGameKit, Axis Game Factory Pro v3, RPG Maker VX Ace (x2), GameMaker Studio Pro, and Stencyl. Sound off in this thread if one of these tools would help you out.

If you have resources you'd like to donate or suggest, reply below.

(edit: Sprite Lamp key claimed)