Unity - The multiplatform game creation tools for everyone.
Tragofone - White-label VoIP Softphone with WebRTC and Auto-provisioning
Godot Engine - Feature-packed 2D and 3D open source game engine.
tSIP - tomeko.net/software: SIP client for Windows.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Lingo - Empower Creation and Ensure Brand Consistency. Build and Share libraries of visual assets with your entire team — all from your desktop.