Scratch - Scratch is the programming language & online community where young people create stories, games, & animations.
Unity - The multiplatform game creation tools for everyone.
Gamurs - A social network for hardcore gamers
Godot Engine - Feature-packed 2D and 3D open source game engine.
CS:GO Dedicated Server Manager - Manage multiple CS:GO servers in one tool
Blender - Blender is the open source, cross platform suite of tools for 3D creation.