Godot Engine - Feature-packed 2D and 3D open source game engine.
Unity - The multiplatform game creation tools for everyone.
Google Noto Fonts - Beautiful and free fonts for all languages
Ubuntu Mono - Ubuntu brand, app and web guidelines that help you create professional materials, software, sites, apps that build the Ubuntu brand.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Pragmata Pro - Monospaced font designed for coding and for engineering. It contents more than 10000 glyphs TrueType handinted for best possible readability at low sizes