OBS Studio - Free and open source software for video recording and live streaming for Mac, Windows and Linux.
Open Hardware Monitor - Monitors temperature sensors, fan speeds, voltages, load and clock speeds, with optional graph.
XSplit - Live stream and record your content with ease & share it to streaming services like Twitch, YouTube, Facebook, Mixer, etc. Start your broadcast today.
Guru3D - Guru of 3D: PC Hardware Reviews and tests
Screencast-O-Matic - Free version Records up to 15 minutes, premium is $15/year.
Geforce Experience - GeForce Experience is a new application from NVIDIA that optimizes your PC in two key ways.