Unity - The multiplatform game creation tools for everyone.
LTSP - The Linux Terminal Server Project adds thin-client support to Linux servers.
Godot Engine - Feature-packed 2D and 3D open source game engine.
Thinstation - Thinstation is a basic and small, yet very powerful, open source thin client operating system...
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Nakama - Nakama is an open-source distributed social and realtime server for games and apps.