Unity - The multiplatform game creation tools for everyone.
Photoshop.com - Photoshop.
Godot Engine - Feature-packed 2D and 3D open source game engine.
piZap - Free online photo editing software.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Phixr - Phixr is a free online photograph proofreader, an instrument for editing your photos in your web program.