SimpleScreenRecorder - SimpleScreenRecorder is a Linux screen recorder that supports X11 and OpenGL.
Unity - The multiplatform game creation tools for everyone.
OBS Studio - Free and open source software for video recording and live streaming for Mac, Windows and Linux.
Godot Engine - Feature-packed 2D and 3D open source game engine.
Webcamoid - Webcamoid is a full featured webcam capture application.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.