Tools
Java IDE
Eclipse eclipse.org/
Intellij www.jetbrains.com/idea/
Graphics & Texture
opengameart.org/ (Free)
Graphics www.graphic-buffet.com/ ($)
Animation
Spine esotericsoftware.com/
Sound & Music
Creative Common music dig.ccmixter.org/new
Collection of soundfx freesound.org/
Free sound mixer www.bfxr.net/
Link Collection
Physics
www.raywenderlich.com/57368/trigonometry-game-programming-sprite-kit-version-part-1 by Tony Dahbura
Books
gameprogrammingpatterns.com by Robert Nystrom
The Art of Game Design by Jesse Schell
Tutorials
Game developers guide to sales www.binpress.com/blog/2015/01/26/game-developers-guide-to-sales/
Create Art, Code! 