Xbox Game Bar - A customizable gaming overlay built into Windows 10 👾
OBS Studio - Free and open source software for video recording and live streaming for Mac, Windows and Linux.
Camtasia - Camtasia 2018 makes it easy to record your screen and create polished, professional-looking videos.
VokoscreenNG - VokscreenNG is a user friendly screencaster for Linux and Windows.
Nvidia ShadowPlay - ShadowPlay
SimpleScreenRecorder - SimpleScreenRecorder is a Linux screen recorder that supports X11 and OpenGL.