API to bot - Convert your API to Alexa skill or Google Home app in 5 mins
Unity - The multiplatform game creation tools for everyone.
Jovo - 🗣 Build cross-platform apps for Alexa and Google Home
Godot Engine - Feature-packed 2D and 3D open source game engine.
Voice Principles - Guiding principles for voice design, all in one place
Blender - Blender is the open source, cross platform suite of tools for 3D creation.