Unity - The multiplatform game creation tools for everyone.
InstaBro - Powerful-yet-simple Instagram browser and data exporter
Godot Engine - Feature-packed 2D and 3D open source game engine.
Vurku - Download Instagram posts by username or hashtag
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Instagram.css - Complete set of Instagram filters in pure CSS