OBS Studio - Free and open source software for video recording and live streaming for Mac, Windows and Linux.
Dxtory - Tool to display FPS in video games, make screenshots, record videos.
Camtasia - Camtasia 2018 makes it easy to record your screen and create polished, professional-looking videos.
ConnectWise Control - ConnectWise Control is a mobile app that allows you to instantly connect with another system from anywhere with a connection to the internet. The software not only comes in a mobile app, but it has a desktop version as well for complete coverage.
Screencast-O-Matic - Free version Records up to 15 minutes, premium is $15/year.
Nvidia ShadowPlay - ShadowPlay