LAN Messenger - LAN Messenger is a decentralized UDP IM-style chat client which supports usernames...
Unity - The multiplatform game creation tools for everyone.
MyChat - Secure instant messenger for any network
Godot Engine - Feature-packed 2D and 3D open source game engine.
BORGChat - BORGChat is a LAN messaging software program.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.